Since I have received the wrong lamp I can say about this bit. only about lamps that were wrong with me. The LEDs are pretty cheap lamps quasi the cheapest LEDs among the LEDs. Prefer to invest a little more. On the LEDs not even the right verbrauchstwerte are given. Only 4-6W appear on the packaging! Even warm white was wrong, the LEDs are cool white. Therefore prefer to order the lamp without bulbs. 13 it will cost. But for get decent LED lamps.