The LED dimmer is flush mount with a mounting hole size of 10mm (0.39 inch), saving space and easily attached to LED lights. This LED light dimmer switch is designed for DC12V applications and compatible with input voltages from 3.6V to 15V, functioning as a touch switch for LED lighting. Ensure your driver is a constant voltage type, as this dimmer is not compatible with constant current drivers. Refer to the provided image to identify the difference between constant voltage and constant current drivers. Input voltage: DC 3.6-15V; working current: 2.5A. The 12V dimmer switch features intelligent touch control—tap once to turn on, tap again to turn off, press and hold to adjust brightness from 0% to 100%. Long press for continuous dimming control. Ideal for use in RVs, cabinets, wine coolers, display cases, closets, and similar applications. Can be used to control various LED lighting such as ceiling lights, pendant lights, and other compatible devices. Size: 10mm Material: ABS Color: White Package Contents: 2 x LED Touch Switches Note: The package includes only the items listed above. Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement may vary by +/- 1-3cm.