My first lamp was after about 2 months defective (all LEDs lit only with a fraction of the luminosity) was, however, easily be replaced by the dealer after I had sent the lamp. Unfortunately, the replacement lamp is approximately 1 month again deficits, individual LED's, total now over 20, have failed. Unfortunately, I can no longer degrade the lamp because otherwise stand my plants with virtually no light. A warranty exchange is unfortunately only possible if the old lamp is first sent, of course, but not very customer friendly. I'm going to operate the lamp first until it fails completely and then buy something real. Unfortunately also here: Who buys cheap, buys 2 times.
