Does the model suit your lighting task?
Gritin rechargeable under-cabinet light, set of two, stands in this selection for short-term light in a cupboard, pantry or stairwell with no socket nearby. It is not intended as permanent task lighting over a kitchen worktop, nor where nobody wants to take the light down regularly for charging. That is a narrower and more honest statement than a blanket “good” or “bad”. A lamp can be technically decent and still disappoint in the wrong place. That is why this review begins with the intended use, not with a score.
Work out the run time yourself, nothing more is needed. A battery with 2500 milliamp hours stores 9.25 watt hours at a nominal voltage of 3.7 volts. With the advertised 8 hours of continuous operation in the brightest mode, a power consumption of 1.16 watts would be left, and together with the 200 lumens named in the attribute table that would be 173 lumens per watt. White LEDs reach roughly 200 to 230 lumens per watt in the laboratory, and considerably less in the finished device. The three figures therefore do not fit together. The only instructions that can be found for this model number give 1.4 watts, and the register entry of a comparable 40 centimetre rechargeable strip gives 140 lumens at 2.1 watts. At 2.1 watts, 9.25 watt hours last for 4.4 hours. Plan for four to six hours.
For this model there are 5 readable product features from the Amazon listing. They are not presented as independently confirmed measured values. We explicitly separate what the source states from our practical assessment. We do not claim any long-term, laboratory or room trials of our own. We reproduce the quoted listing texts unchanged in content, but apply the house style for punctuation: dashes become a colon or comma, ranges are written out with “to”, and special characters and advertising symbols are removed. Numbers, units and statements are left untouched.
Product data and sources
| Product | Gritin rechargeable under-cabinet light, set of two |
|---|---|
| Brand | Gritin |
| Category | Home lighting |
| ASIN | B0FFB5SY39 |
| Sources as of | 30 August 2026 |
| Type of research | Data and source analysis; no laboratory or long-term trial of our own |
Listing statement: Upgrade premium features
What the source says: Upgrade premium features: Gritin cupboard lighting has 128 super bright LED beads, carefully made of aluminium alloy and robust ABS, combining ultimate strength and style. In motion sensor mode, the under-cabinet light has a 120° wide angle and a detection range of 3 metres. The cupboard light switches itself off automatically if no movement is detected within 20 seconds, so you do not have to search laboriously for the switch.
Why this matters: With a sensor, detection angle, range, mounting height and possible false triggering count. These points cannot be fully derived from a bare mention of a function. The number of LEDs says nothing about brightness. Work with the energy instead: a battery with 2500 milliamp hours at 3.7 volts stores 9.25 watt hours, and with the advertised 8 hours of continuous operation, 1.16 watts would be left for the whole strip. Spread over 128 LEDs that is about a hundredth of a watt per LED, so a very low operating current. Incidentally, the attribute table enters 256 light bulbs at the same place, that is the sum of both strips in the set. Unlike many under-cabinet lights with a hand-gesture sensor, this is a genuine motion sensor that responds to approach in the room and not to a hand a few centimetres below the housing. Three metres of range at 120 degrees also mean, however, that in day mode the light switches on with every pass and uses up battery in doing so. For a cupboard, night mode with the additional dusk sensor is the more economical choice. This run-on time is very short, and it cannot be adjusted in sensor mode. The only instructions that can be found for this model number give 20 to 25 seconds; they lie only in a third-party manual archive and could not be cross-checked. For reaching onto a shelf that is enough, for work at the worktop it is not, because there you stand still for longer than twenty seconds and then sit in the dark. If you need light for longer, switch to continuous light mode, and exactly that empties the battery.
Listing statement: 3 colour temperatures & 5 brightness levels
What the source says: 3 colour temperatures & 5 brightness levels: Equipped with 3 colour temperatures: warm (3000K) for cosy rooms, cool (6000K) for task lighting and balanced mixed (4500K) for versatile use, it can easily be adapted to different needs with a one-button (temperature button) control and creates atmosphere. By setting the brightness levels of 10%/25%/50%/75% /100% or pressing and holding, stepless dimming is activated and meets different lighting needs.
Why this matters: The stated colour temperature describes the effect, not the brightness. In everyday use it matters whether fixed steps or a continuous range are offered and whether the setting is saved. The three steps at 3000, 4500 and 6000 kelvin are a pure seller statement, because no registration and no manufacturer document exists for this device in which they could be read. The product data sheet attached to the listing page gives a single colour temperature of 4500 kelvin, but belongs to a different trademark and a different model. In practice that means: take 3000 kelvin for the kitchen in the evening and 6000 kelvin only where you really need contrast, and do not expect measured values.
Listing statement: 4 lighting modes
What the source says: 4 lighting modes: The motion sensor lights support 4 modes for different occasions: Off mode, night mode (motion activation in darkness), day mode (motion activation at any time, regardless of ambient brightness) and continuous light mode (constant light). The automatic sensor function is therefore ideal for kitchens, cupboards, pantries, stairs, cellars and other rooms that need reliable lighting.
Why this matters: With a sensor, detection angle, range, mounting height and possible false triggering matter. These points cannot be fully derived from a bare mention of the function.
Listing statement: USB C rechargeable & long lighting time
What the source says: USB C rechargeable & long lighting time: Thanks to the built-in high-capacity 2500 mAh battery, the cupboard light offers a lighting duration of up to 7 to 45 days in sensor mode and continuously 8 hours in super bright mode. It can easily be charged via the USB C cable, so frequent charging is not needed. The perfect choice for modernising your home lighting! (2 USB C cables included in the package)
Why this matters: With a sensor, detection angle, range, mounting height and possible false triggering count. These points cannot be fully derived from a bare mention of a function. This capacity is the only reliable quantity of the whole listing, and with it the other promises can be checked. 2500 milliamp hours times 3.7 volts divided by 1000 equals 9.25 watt hours. Important for everyday use: each of the two strips has its own rechargeable battery and its own USB-C cable, and for charging, the strip has to be taken off the magnetic plate. The magnetic mount is intended for exactly that, and exactly for that reason it is not an accessory here but a condition. These eight hours do not fit with the other figures on the same page. 9.25 watt hours divided by 8 hours gives 1.16 watts, and 200 lumens from 1.16 watts would be 173 lumens per watt, so more than a finished battery-powered device achieves. The archive instructions for this model number, which cannot be cross-checked, give 1.4 watts, so even 9.25 watt hours only last for 6.6 hours. It is also telling that the 26 centimetre sister model with only 1800 milliamp hours promises the same 8 hours word for word. Plan for four to six hours.
Listing claim: Easy installation & versatile use
What the source says: Easy installation & versatile use: Thanks to the built-in strong magnets, these cabinet lights can be installed on iron surfaces without any trouble. For non-metallic surfaces you can use the supplied self-adhesive iron plates to fit them anywhere. This makes them easy to remove and put back when they need charging. Ideal for the kitchen, bedroom, wardrobe, cupboards, counter, pantry, cellar, stairs, hallway, shelves and similar places.
Why this matters: This point should be checked against dimensions, instructions and the existing installation before you buy. A listing can contain variants or shortened wording. It is the most practical part of this offer, because without a removable fixing a rechargeable device would be unusable in everyday life. For non-metallic cupboard undersides, self-adhesive iron plates are included, and the strip then holds magnetically. Degrease the adhesive surface thoroughly beforehand, otherwise the plate will come loose with the grease in a kitchen. And expect to take the strips down regularly, because charging is done via USB-C on the strip itself.
Use in daily life
Three things matter in everyday use. First, power: no power supply, no cable, but one rechargeable battery per strip and two USB-C cables in the box. You do not need a socket nearby, but you do need access for charging. Second, fixing: each strip contains magnets, and self-adhesive iron plates are included for non-metallic undersides. Nothing is drilled, which is the right design for a rented kitchen, and the adhesive residue can be removed when you move out. Third, operation: four modes via one button, plus three colour temperatures and five brightness levels. In sensor mode the strip switches off again after roughly twenty seconds without movement, while in constant light mode it stays on and uses power accordingly.
For this model, the purchase decision should therefore hinge on a concrete situation. Before buying, write a sentence such as: “I need light for …” and add place, time of day and activity. If the model does not clearly fulfil this task, an alternative from the same category is probably the better choice.
What this device is not built for: permanent task lighting. With an output on the order of 200 lumens and an overrun time of roughly twenty seconds, it is auxiliary light for reaching into a cupboard, for the pantry, for a cellar staircase. Anyone who chops and cooks above the worktop needs a mains-powered strip with several hundred lumens and controls that do not switch off after twenty seconds. It is also not a luminaire for damp rooms: the attribute table lists Not waterproof and assigns the device to indoor use, and the seller does not state an IP rating at all. And it is not for outdoor use, not even in an open carport.
Strengths and limits of the assessment
What speaks for the model
- Product image, ASIN and listing data are clearly linked to one another.
- The design can be matched to a specific lighting task: for short-term light in a cupboard, pantry or stairwell without a socket nearby, not as permanent task lighting above a kitchen worktop and not where nobody wants to take the light down regularly for charging.
- The available features allow a targeted check before buying, without inventing a star rating.
What remains open
- No long-term use of our own, no light measurement and no documented load check.
- Listing details can be abbreviated or change with variants and model updates.
- Room effect, glare and ease of use depend on your location and daily routine.
This purchase most often fails on the expectation the title creates. Super bright here means an output on the order of 200 lumens, that is roughly a 25 watt incandescent bulb, and even this figure appears only in the seller's attribute table. The second stumbling block is the overrun time of roughly twenty seconds: if you mount the strip above the worktop and stand there without moving, you are suddenly standing in the dark, and the way out via constant light mode costs runtime. The third is charging itself, because each strip has to be taken down and hung on a USB-C cable, and with four to six hours of constant light this happens more often than the title suggests. And fourth, there is no fallback when you have questions: there is no reachable manufacturer page, no register entry for this model number and no document in which the stated figures can be looked up.
What you should measure and check before buying
First measure the stretch that is really meant to be bright and set it against 37.5 centimetres: two strips together cover 75 centimetres, and a kitchen run is usually longer. Then check whether the surface is magnetic, because otherwise you need the supplied iron plates, and they only hold on a degreased, smooth underside. Also check whether you can reach the strip without emptying the cupboard, because for charging you take it down and plug it into a USB-C cable. And decide beforehand which mode you want to run it in: in sensor mode with roughly twenty seconds of overrun the battery lasts a long time, while in constant light mode our calculation points to four to six hours.
- Clarify the task: First clarify whether you need permanent task lighting or short-term light without a socket. These are two different device classes, and this set is the second.
- Check length and quantity: The box contains two strips of 37.5 centimetres each, so 75 centimetres together. Measure the stretch that should be bright and work out whether that is enough.
- Recalculate the runtime: 2,500 milliamp hours at 3.7 volts is 9.25 watt hours. At a realistic two watts that is a good four hours of constant light, not eight. In sensor mode with twenty seconds of overrun the battery lasts much longer.
- Clarify fixing and charging access: Check whether the mounting surface is magnetic, otherwise you need the supplied iron plates and a degreased adhesive surface. At the same time, check whether you can comfortably reach the strip for charging.
- Cross-check model code and version: Check the length before ordering, because the same model number G1358 also appears on a 26 centimetre set with 84 LEDs and 1,800 milliamp hours. The energy label hanging alongside does not help here, as it carries a different trade name and a different model identifier.
If you are unsure how much light your room needs at all, work it out once: the lumens-to-watts chart translates wattage figures into actual brightness, and how many lumens per room are needed depends on area and activity. Further models from this area are in the overview under home lighting, and the lighting calculator translates your room into a concrete target brightness.
Set-up, position and first check
When setting up, neither floor space nor a socket matters, but reachability does. These lights are attached magnetically and taken down again for charging, so you should be able to reach the mounting point without emptying the cupboard or fetching a ladder. Stick the supplied iron plates only onto a dry, degreased surface, otherwise in a kitchen everything comes loose with the grease after a few weeks. Charge both strips fully before the first installation and then run through the four modes in the dark, because which mode makes sense in your cupboard is decided by the dusk sensor and not by the sales copy. And aim the strip so that the sensor points at the spot where you stand, not at the passageway.
After set-up, do not judge the light only in daylight. In the evening, switch the rest of the lighting as you normally use it, and check the situation from seated, standing and walking height. Only then do disturbing reflections, hard shadows or an unfavourable switch position become visible.
Note the model number and order date and keep whatever paperwork is in the box. For this item there is neither a manual nor a manufacturer page to download, and in the event of a complaint the retailer is the only point of contact. In a warranty claim, both are the only proof of which device you bought. Replacing the light source is not provided for, and at the end of its rated lifetime the complete device is replaced. This device is intended for indoor use only and is not approved for damp rooms or outdoor use.
Comparison with similar models
The comparison does not name winners. It shows models of the same category so that you can see whether one of them is closer to your lighting task. If two models have the same task in the Assessment column, they do not differ in purpose but in design, dimensions and features. The column then states what is actually different according to the sources.
| Model | Brand | Assessment | Details |
|---|---|---|---|
| Gritin rechargeable under-cabinet light, set of two | Gritin | for short-term light in a cupboard, pantry or stairwell without a socket nearby, not as permanent task lighting above a kitchen worktop and not where nobody wants to take the light down regularly for charging | This review |
| SIBI LIGHTING under-cabinet light 1 metre | SIBI LIGHTING | for a continuous line of light under a kitchen wall cabinet with a socket nearby, not as room lighting and not where a mechanical switch is needed as a fallback | Read the analysis |
| SIBI LIGHTING under-cabinet light 41 cm | SIBI LIGHTING | for task lighting under a kitchen wall cabinet with a socket within one and a half metres, not as room lighting and not where a mechanical switch is needed | Read the analysis |
Our buying decision
The Gritin rechargeable under-cabinet light two-pack makes sense if you are looking for a pair of lights for short-term light in a cupboard, pantry or stairwell without a socket nearby, have checked the dimensions at the intended spot and will actually use the functions named in the listing. The purchase is less convincing if you expect a universal solution for several conflicting lighting tasks.
Keep looking if key data such as dimensions, light output, IP rating or compatibility is not clearly documented for your intended use. The same applies if you only like the look of the design, but the cable, the floor space or the controls would get in your way in daily use.
We deliberately award no stars. A numerical score would suggest a measurement accuracy that does not exist without documented hands-on testing. The statement this page can support is narrower: which details are available, what the model may be suited for, and which questions remain open before you buy?
Frequently asked questions about the rechargeable under-cabinet light
How many lights do I get, and how long are they?
There are two lights, as stated at the end of the listing title and in the attribute table under number of items, set name and package contents. Each strip measures 37.5 by 4 by 1 centimetres and has its own rechargeable battery, and two USB-C cables and an instruction leaflet are included. If you only want to light one spot, you are therefore buying a spare. For a continuous kitchen run, two strips with a combined 75 centimetres do not go far.
Does the battery really last 8 hours?
That does not fit with the other figures on the same page. 2500 milliamp hours at 3.7 volts is 9.25 watt hours, and 8 hours of continuous operation would mean the strip draws only 1.16 watts; together with the stated 200 lumens that would be 173 lumens per watt and therefore more than a finished battery-powered device achieves. The only instructions that can be found for this model number give 1.4 watts, and the register entry of a comparable 40 centimetre rechargeable strip gives 2.1 watts. So plan for four to six hours on the brightest setting and for considerably more if you dim it or use sensor mode.
Why does the label show a different company name?
Because the label and the product data sheet that this listing shows near the price do not belong to this product. They carry the trademark Shenzhen Midou Technology Co., Ltd. and the model identifier WL04, and the associated register entry describes a device of 100 by 100 by 100 millimetres with 300 lumens at 1.4 watts and a single colour temperature of 4500 kelvin. On the listing page of the 26 centimetre sister model with the same model number there is even a third label, that of Shenzhen Yuesen Lighting Factory with class G. The classes B and G shown there therefore describe neither of the two Gritin devices.
Does a rechargeable device like this need an energy efficiency class at all?
Under Annex IV of Regulation (EU) 2019/2015, light sources in battery-powered products are exempt from labelling, with torches, toys and exclusively battery-powered desk lamps expressly named. In our reading, a rechargeable cupboard light falls under this, so it would need neither a label nor a register entry. That explains why the Gritin brand lists six light sources in the EU product register but none with the number G1358. It does not explain, however, why the listing instead shows the labels of two other companies.
How bright are 200 lumens in practice?
That roughly corresponds to the light of an old 25 watt incandescent bulb, that is an order of magnitude that makes the contents of a cupboard visible but does not light a worktop. To make matters worse, it is not clear from the listing whether the 200 lumens refer to one strip or to both together: the attribute table enters 256 under number of light bulbs, that is the sum of both strips, whereas for the 26 centimetre sister model it enters 84, that is the value per strip. In the unfavourable case, calculate with 100 lumens per strip. For task lighting over a kitchen worktop, both are too little.
Is there a manual or data sheet from the manufacturer?
No, at least none that describes this device. The domain gritin.com does resolve to a Shopify address, but it breaks off the encrypted connection with an expired certificate and over an unencrypted connection only answers with status code 409, gritin.net is a parked page and gritin.de does not exist in the DNS. The only instructions that can be found are on a third-party manual archive that rejects automated access with status code 403, and they describe a 26 centimetre device with 1800 milliamp hours and 1.4 watts. As contact information for the manufacturer, the attribute table gives a Chinese mobile number.
Sources and currency
The sources are ranked by their closeness to the product: manufacturer documents come before retailer or comparison data. A shop listing is useful for the variant currently on offer, but it is not an independent check. Missing documents are not replaced with invented experiences.
- Listing page for ASIN B0FFB5SY39. The full title names 3 colours, 5 brightness levels, 4 modes, motion sensor, a rechargeable battery of 2,500 milliamp hours, strong magnets and explicitly 2 pieces. The bullet points name 128 LEDs per light, a detection angle of 120 degrees, a range of 3 metres, automatic switch-off after 20 seconds without movement, three colour temperatures of 3,000, 4,500 and 6,000 kelvin, five brightness levels of 10, 25, 50, 75 and 100 percent including stepless dimming on a long press, four modes of off, night mode, day mode and constant light, a lighting time of 7 to 45 days in sensor mode and 8 hours of continuous operation at the brightest setting, charging via USB-C, and magnets and self-adhesive iron plates for fixing. The attribute table lists model number, model name and item number as G1358, manufacturer Gritin, number of light bulbs 256, light output and maximum light output of 200 lumens each, colour temperature 3,000 kelvin, energy efficiency class for light sources with the entry Energy efficient, power supply Battery powered, bulb base E27, water resistance Not waterproof, indoor, item dimensions 37.5 by 4 by 1 centimetres, item weight 334 grams, number of items 2, contents two under-cabinet lights, two USB-C cables and an instruction manual, country of origin China and, as the manufacturer's contact information, a Chinese mobile number. Rating 4.7 out of 5 from 22,412 ratings. Amazon listing B0FFB5SY39, not linked
- The product data sheet under Regulation (EU) 2019/2015 that this listing provides. It does not carry the Gritin brand. The supplier name or trade mark given there is Shenzhen Midou Technology Co., Ltd., the address is OASIS SERVICE SP. Z O.O., ul. Mlynarska 42 in Warsaw, and the model identifier is WL04. It states 300 lumens in spherical measurement over 360 degrees, 1.4 watts in on mode, 1 kilowatt hour per 1,000 hours, energy efficiency class B, 4,500 kelvin as a single value, colour rendering index 80 with an R9 value of 4, non-directional light, not connected directly to the mains, dimmable No, external dimensions 100 by 100 by 100 millimetres, EPREL registration number 2059807, supplier REP Europe GmbH as authorised representative. A cube with an edge length of ten centimetres and a single colour temperature is not the 37.5 centimetre strip with three colour temperatures from this listing.
- The energy label that this listing shows near the price. It names Shenzhen Midou Technology Co., Ltd. as supplier, WL04 as model identifier, B as class and 1 kilowatt hour per 1,000 hours as consumption. Neither the brand name Gritin nor the model number G1358 appears on it.
- EU product register EPREL, registration 2059807 for model identifier WL04 of the trade mark Shenzhen Midou Technology Co., Ltd., entered via REP Europe GmbH, placed on the market since 21 June 2024. Entered are 300 lumens at 1.4 watts, class B, 4,500 kelvin, colour rendering index 80 with R9 value 4, non-directional light, not connected directly to the mains, not dimmable, dimensions 100 by 100 by 100 millimetres. 300 divided by 1.4 is 214.3 lumens per watt, with the factor 0.926 for non-directional light without direct mains connection 198.4, and that falls in class B. The registration is consistent in itself. It simply describes a different product.
- Listing page for the sister model of the same brand with a length of 26 centimetres, ASIN B0F1C56SR1. In model number, model name and item number it carries the same identifier G1358 as the 37.5 centimetre version. It names 84 LEDs per light, a battery of 1,800 milliamp hours, light output and maximum light output of 180 lumens each, number of light bulbs 84, voltage 5 volts direct current, bulb base E26, item dimensions 26 by 4 by 1 centimetres, item weight 245 grams, likewise two pieces in the set, the same three colour temperatures, the same detection angle of 120 degrees, the same range of 3 metres, the same switch-off after 20 seconds and, word for word, the same statement of 7 to 45 days in sensor mode and 8 hours of continuous operation at the brightest setting. The energy efficiency class for light sources is given there as A+++. Amazon listing B0F1C56SR1, not linked
- The energy label shown on the listing page of the 26 centimetre sister model. It names a third name: Shenzhen Yuesen Lighting Factory, model identifier YS-CGD20-01, class G, 2 kilowatt hours per 1,000 hours. The same model G1358 is therefore labelled in two listings with two different third-party trade marks and two different classes.
- EU product register EPREL, registration 1878512 for model identifier YS-CGD20-01: 100 lumens at 1.3 watts, class G, 6,000 kelvin, colour rendering index 80 with R9 value 1, not connected directly to the mains, dimensions 200 millimetres in length. 100 divided by 1.3 is 76.9 lumens per watt, with the factor 0.926 it is 71.2, and that falls in class G. The factor 0.926 applies here because non-directional light without direct mains connection is entered. The same model identifier is entered three times in the register, under the trade marks SUWIN, GPATIO and BokiHuk. The trade mark Shenzhen Yuesen Lighting Factory, which the energy label of the sister listing names, does not appear above any of these three entries. A 20 centimetre strip with 100 lumens is not the 26 centimetre device with three colour temperatures on whose listing page this label appears.
- EU product register EPREL, registration 2677250 for model identifier YS-CGD40-01, entered under the trade mark Shenzhen Yuesen Lighting Factory and thus under exactly the name that the energy label of the sister listing names, placed on the market since 27 March 2026: 140 lumens at 2.1 watts, class G, three colour temperatures of 2,700, 4,000 and 6,000 kelvin, dimmable, not connected directly to the mains, dimensions 400 by 40 by 12 millimetres. This is the only strip of this design and order of magnitude that can be found in the register, and it sets the realistic rule of thumb: a good two watts for a 40 centimetre rechargeable strip with three colour temperatures.
- EU product register EPREL, registration 1565484 for model identifier G1330 of the trade mark Gritin, representing the query for this trade mark. The query returns exactly six light sources, namely G1302, G1321, G1322, G1326, G1330 and G1331. They are reading lights and round panels between 60 and 700 lumens. A registration for model identifier G1358 does not exist, neither under Gritin nor under any other trade mark.
- Annex II of Delegated Regulation (EU) 2019/2015 in full text with the calculation rule for the efficiency class and the two relevant tables. Table 1 gives the class limits from A at 210 down to G below 85 lumens per watt, Table 2 the four conversion factors: 1.000 for non-directional light on the mains, 0.926 for non-directional light without direct mains connection, 1.176 for directional light on the mains and 1.089 for directional light without direct mains connection.
- IT-Recht Kanzlei, guide to labelling light sources on the internet. Two points are documented. First, the exemption under Annex IV: the regulation does not apply to light sources in battery-powered products, explicitly named being torches, mobile phones with an integrated torch, toys with light sources and exclusively battery-powered desk lamps. Second, the retailer's duty for a specific offer with a price: the electronic label and the product data sheet must be displayed near the price.
- licht.de on the energy efficiency classes of light sources in force since 1 September 2021, with the class limits for luminous efficacy: A from 210 lumens per watt, B from 185 to 209, C from 160 to 184, D from 135 to 159, E from 110 to 134, F from 85 to 109 and G below 85 lumens per watt. This makes it possible to check what the classes B and G shown on the two listing pages actually mean.
- Amazon product listing B0FFB5SY39; product data via the Creators API, retrieved 30 August 2026 Advertisement
Content checked on 30 August 2026. Prices, availability and product variants can change independently of this page. For a final check, always use the current retailer listing and any available manufacturer documents.
If a linked source is no longer reachable, or the model on offer visibly differs from the product image and designation, this analysis is no longer the right basis for a decision. In that case the current model number is what counts. Tell us about the difference via the contact page (in German), so that the data, the link and the recommendation can be checked.
