Thought - done! After receiving the goods immediately tried it and done very well. So far I use only lamps with a consumption of 3 - 5 Watt, but here you already in just one light source a much better light output with low consumption. Thus, no problem at all, only with three piece alone an almost 20m² large room completely light illuminate without "shadows holes". Although the acquisition of course once the purse "hurts", I ordered immediately for two additional rooms lamps, there to improve the luminous efficiency and the dark places in the room, which at 3 - 5 Watt unfortunately are present with me, mend. The stated 560 lumens, measured only by the naked eye, I would doubt at any time, but check them for yourself ...!
I can only stress again at this point a very strong buy recommendation.