The idea is awesome, a dimmable energy saving bulb that does not even require a dimmer. The dimming is done in four stages by briefly turning on and off about every normal light switch. Well the lamp is considerably more expensive than ordinary energy-saving lamps, but the dimming is already a great thing, I thought to myself. Unfortunately, the Megaman DorS but blown already after 6 weeks, because of 10,000 hours burning time, as promised by the manufacturer. And yet this was the part of the manufacturer on my complaint no response, complete lack of interest in the customer. Therefore, I can not recommend the lamp.