LED Grow Light with an attractive design

Since I from January with more or less success zoom draw every year on a not too bright window seat seedlings to about the middle of May to little plants, I could this year for the first time shed light on a special plant light of TaoTronics for several hours a day.
Also this year, had a part of my numerous chili plants initially pale leaves and a relatively slow growth.
This may be due to too little daylight in all probability, since the plants Fester is taken by a projecting balcony, a large part of scarce anyway in winter daylight.

Initial experience with the TAO TT-20 GL
For about three weeks, the small plants are illuminated for approximately 8-10 hours per day. Lo and behold, though I initially harbored some doubts, in the meantime, almost all plants rich green leaves and healthy growth.
Should this effect still continue, I am convinced that we can only provide healthy chili plants into the open in about two weeks.
Lt. Manufacturer's instructions, the lamp can be applied in all phases of growth.

Lamp specifications
Weighing about 300 grams and a diameter of about 12 cm, the lamp is certainly grown a little in size, in return for this twelve-bright and not overly-LEDs can show.
The LEDs light up in groups arranged in three different colors and with three different wavelengths, which are conducive to plant growth.
For effective lighting the lamp in my opinion, no more than about 70 cm should depend on the plant because of the angle of radiation with increasing distance growing and the effectiveness consequently is dwindling.
The luminescent color of each provided with a protective screen LED gives an overall relative purple hue. With an overall consumption of just 12W and an average life of about 50,000 hours, the environmental aspect is definitely not to be despised.
The lamp body has, despite its size using the white paint and the numerous and clean cooling fins arranged a quite very appealing for me design and is definitely not hot, even after several hours of operation.
As no lamp socket (ordinary screw thread E27) is included, the one or the other has to be content, willy-nilly with a version from the hardware store. As a better alternative, I would recommend a Swedish furniture store, where you certainly cheap and pretty lamp holders including matching umbrella (if desired) can find.

Conclusion
So far, the plants light could effect / effectiveness convincing in the matter quite me.
Only the not inconsiderable acquisition price of just 40.- Euro (30 Euro would sound much better) and the lack of lamp socket keep me from getting to award 5 stars, despite buy recommendation.