I was pretty annoyed and have the same problem, as some others have described here! The lamp itself is really good! I have therefore an Aloe Vera aufgepeppelt and after two weeks she was already clearly better. But as described here several times, after about a month the thing was gone. These are less than 500 hours from the 10,000 given and I got the part of not constantly turned on and off, dropped, or otherwise made it, no, only once a day on and off! Since obviously many like this, I would strongly advise against it, especially since I just read an interesting article about fluorescent lamps is described (in use for plants) where that just make just such plants lamps not make sense, because you the same for less money can have, with normal fluorescent lamps. At the same time the lamp does not radiate light magenta, but normal white light, so much light Wohnzimmertauglicheres !!! These so-called UV lamps emit no green light from, because plants do not use it, but also no longer the remaining range, and thus the plant bringts also not more ... Here is the link to the page [...]