A reliable lamp for small breed. I have my four copies now for about three years and rate them as follows: Per plant: -a lamp by the window with natural light improves plant color and leaves in some species other, autumnal colors for Come expression -two lamps without daylight rich to survive / hibernate -from three lamps without light is increasingly a growth / Flower and etiolation is reduced The design of a reflector with 20W I can not recommend that, because they might suffer a quick death due to overheating and only about 1000h lights. Main fields of application are in my chili winter, chilli cultivation, herbs, cuttings breeding (good rooting), Blühpflanzen- and cacti lighting. For fast growing vegetables and yielding plants but not recommended, as this lamp type works according to the minimum principle. Here it should be resorted to high-pressure lamps.