This dimming controller can be connected in parallel. One switch allows dimming control from 0% to 100%, enabling synchronized dimming and switching of individual lamps. The controller is passive and does not require an external power supply. The dimming signal operates on a 0-10V voltage range, with no wattage limitation. The compact design offers strong compatibility, and the dimming process is smooth without flicker or jitter. This dimmer switch is suitable for use with various lighting types, including grow lights, track lights, spotlights, downlights, ceiling lights, panel lights, wall washers, and more. Easy to wire: Connect brown to positive and blue to negative. Compatible with 0-10V and 1-10V dimming signal drivers. Do not connect directly to AC power. To synchronize multiple dimmers: Set all dimming controller switches in the group to the ON position. Adjust all 0-10V dimmer knobs to the maximum setting. Any dimmer in the group can then be used to adjust the brightness of all connected lights simultaneously. Color: Black Material: ABS Package Contents: 1 x LED dimmer switch Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight variations in color representation. Measurement tolerance: +/- 1-3 cm.