I was looking for a blue light-giving lights which is favorable to maintenance. The color temperature of about 6000 K is super to support plants in growth, for the flowering times in the summer, I use then the hot-tempered LED. I write here the times because it is not well known that modern lamps are suitable for plants and thus constitute a very good alternative to professional lamps, at least for the living area.
This is optimal for my apartment, which has only window on the north side, the price performance ratio when the lamps are on day 12 hours, I'm quite happy !!