DC 0-10V LED Dimmer is a standard 0-10V passive dimmer controller used to control a of dimmable LED drivers with dimming signals from 0 to 10V, and dimmable optoelectronic ballasts. For dimming signal input, D+ is the positive pole of dimming signal, and D- is the negative pole of dimming signal. Red is positive, black is the negative terminal. Dimmers are small and easy to install. 0~100% stepless dimming, no stroboscopic. Manual rotation 180 degrees dimming, simple operation, easy installation. DC 0-10V led dimmer is suitable for all 0-10V electrical conditioning, plant light dimming, downlights, track lights, wall wash lights, LED lights, etc., compatible with drives with standard 0/1-10V dimming signals. Place from direct heat sources and in a well-ventilated area. If is built in, you must adequate ventilation. Color: Black Material: ABS Package Contents: 2 x pcs Dimmer Switches Only the above package content, other products are not included. Note: Light reflection 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.