EU Universal 12-24V 5A PWM Dimmer Switch for Low Voltage LightsRV Light Dimmer Light Switch Control Panel 12-24V 5A Universal PWM Dimmer Low Voltage DimmerLED Dimming Switch: Easily adjust the brightness of your 12-24V dimmable lights.Low Voltage Dimmer Switch: Simple wiring and installation for hassle-free use.Knob Switch: control panel compatible with moderate size for .Constant Resistance Tuning Switch: Daily installation needs met with front panel placement.Colour:BlackMaterial:Plastic+AluminumPackage Contents:1 x Light Dimmer With mounting screwsOnly 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.