Electrical Dimmer Switches for Home・ Commercial・ Industrial・ and Office. <br />Voltage: 12V - 24V (12-24V)<br />DC Output: 1 Channel (each controller for 1 strip/ribbon/lights for up to 8amp at 12vdc)<br />Controller Dimension: L89 x W59 x H35 (H57 with Knob switch)<br />Packing Size: L96 x W64 x H65 ・ Each order is for 1 controller Revision 2 for 24V DC compatible<br />Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error  is 1-3 cm.