D669E2-MP is a trailing edge LED Dimmer switch with Master and Master control system, options up to 300W(max.250 LED lamps)220V-240V~50Hz input. Multi way technology allows multi-way dimming / switching with no extra wires which suitable for newly built or retrofitted, offering smooth dimming range from 0%~100% to prolong the span of the lights. It is suitable for well known brands of cover frames.