This dimming controller supports connecting multiple lamps in parallel. One switch enables dimming from 0% to 100%, synchronized on/off control, and independent dimming and switching for each lamp. As a passive controller, it requires no external power supply. The dimming signal is 0–10V DC; there is no wattage limit. The unit is compact, highly compatible, and provides flicker-free, jitter-free dimming performance. Commonly used with plant growth lights, track lights, spotlights, downlights, ceiling lights, panel lights, wall washers, and other 0–10V dimmable lighting fixtures. Wiring is simple: connect the brown wire to the positive dimming signal line and the blue wire to the negative dimming signal line. Compatible with various 0–10V dimmable drivers. Do not connect directly to AC mains power. To synchronize multiple dimmers: Set all dimmer switches in the group to ON, adjust all 0–10V dimmer knobs to maximum, then use any knob in the group to control overall dimming level. Color: Black Material: ABS Package Includes: 1 × LED dimmer switch Note: Actual product color may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.