ePhotoInc 2 x 500 LED Light Panels Photography Video Studio Lighting Panel with Filters and Dimmer Switch 500SDx2 High output, stable color temperature, long service life 500 LED's (equivalent output of 500 watt) Uses: 50 watt and it is Equivalent: 500 watts 4 Dimmer Switch and dial dimmer Power On/Off Power Source : 110V-120V ONLY