Welcome to the store! This dimming controller can be connected in parallel with multiple units. One switch can achieve dimming in the range of 0~100%, synchronization, as well as dimming and switching of a single lamp. Since this dimming controller is passive, no external voltage is required. The dimming voltage is 0-10V, there is no power limitation, the product is small in size, the compatibility is strong, and the dimming process has no flicker or jitter. Dimmer switches are widely used in all types of plant lighting, track lighting, spotlights, downlights, ceiling lamps, panel lamps, wall washers, and other lighting pairings. Easy to connect: Brown connects \"+\", Blue connects \"-\"; Compatible with 0/1-10V dimming signal drivers; DO NOT connect it directly to AC power. How to synchronize multiple dimmers in series: All dimming control switches in the entire group are set to the ON position, all 0-10V dimmer knobs in the entire group are adjusted to the maximum value, and any 0-10V dimmer in the entire group can be rotated to adjust the dimming of the entire group synchronously. color: Black Material: ABS Package Contents: 1 x LED Dimmer Switch Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!