This dimming controller can connect multiple in parallel. One switch can realize dimming in the range of 0~100%, synchronizing , and dimming and switching of a single lamp. Because this dimming controller is passive, no external voltage is required.<br> The dimming voltage is 0-10V, there is no power wattage limit, the product is small in size, the compatibility is strong, and the dimming process has no flicker and jitter.<br> Dimmer switch are widely used in all kinds of growth lights, track lights, spotlights, downlights, ceiling lights, panel lights, wall washers and other lighting pairings!<br> Easy to wiring : Brown connecting "+",Blue connecting "-";Compatible with 0/1-10V dimming signal drivers ;DO NOT connect it with AC power directly.<br> How to synchronize multiple dimmers in series : All dimming controller switches of the whole group are set to the ON position, all 0-10V dimmer knobs of the whole group are adjusted to the maximum value, and any 0-10V dimmer of the whole group can be rotated to adjust the dimming of the whole group of synchronously.<br> color:Black<br> Material:ABS<br> Package Contents:<br> 1 x led dimmer switch<br> Only the above package content, other are not included.<br> Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.