Simple operation: the LED light bar dimmer switch is controlled by a knob. Turn the knob to adjust brightness or turn the light on/off. Turning the knob to the right gradually increases brightness, while turning it to the left gradually dims the light. No flicker or current fluctuation: utilizes PWM digital dimming technology for 0%-100% dimming. Provides stable performance with no flickering at low brightness and smooth, linear adjustment. Operating temperature: -20C to 60C. Compact and easy to install: small unit measuring 65 x 33 x 32 mm can be easily concealed. Includes mounting clips for simple installation. Compatible with various LED strips: works with single-color 3528, 5050, 5630, 5730, and 3014 LED light bars. Specifications: operating voltage DC 12V-24V, power capacity up to 144W, single channel current less than 6A or 2A depending on model. Maximum control distance: 10 meters. Stay within rated specifications for safe operation. Output current: less than 6A or 2A Color: black or white Material: metal and plastic Package includes: 1 x LED strip dimmer Note: Other accessories not included. Color may vary slightly due to lighting and display settings. Measurement tolerance: +/- 1-3 cm.