Finally a bezahlbere bright LED light, moisture tolerant in decent quality

Pure China commodity or a product from Germany, designed and / or (partially) produced in Germany, which recognizes you.
Here you get a product, how it actually like here and earlier always appreciate knowing (die-cast aluminum housing, Wagoklemmen, right screws and many more.).
In relation to simple ESL, fluorescent solutions, halogen lamps, etc. still expensive, but already much cheaper than most of competitors.
The light brightness (lens) is metrologically already so roughly correspond to the specifications, subjectively, I feel it is not so bright.
But what is the scale? I would say, one per 10m² room.
Only with two I felt the brightness of my old 40W fluorescent tube.
This was partly because the brightness in the immediate vicinity of the lamp is greater than a few meters.
That's why I usually prefer more individual spots that illuminate precisely everything important and therefore indeed provide a greater range of brightness in the room, which are perceived as pleasant but usually.
It is bad to describe, but I recommend everyone a personal test with this light if rant, then at a high level.

It is therefore advisable rather, to 4 to distribute 2 in one room and easy to use due to excessive brightness the internal controller to bring it back to darken slightly.

No question, the storage room, as an additional light or in places where it is not so important one, can also be a 20 mm range.

The manufacturer responded quickly on the way (meaningful) requests and may possibly even offer special solutions (eg 12V conversion, with large orders).

Slightly disappointed I am with the color fidelity. From two purchased 3000k lights drifting slightly in the direction of 2700K and the other towards 4000K. No, I feel it is only a little disturbing because the two complement fine, but maybe it bothers you?

Now I only hope that the long rated life is actually achieved and not, as in some cheap products, where the LEDs would persevere even 100,000 hours, but explodes a capacitor after 500 hours and makes the light unusable.