1. Adjustable brightness from 0 to 100%. 2. Adjust the light to be soft and stable, without flicker. 3. The PWM numbers are dimmed to avoid inrush current and protect your LED lights. 4. By controlling the voltage and current output, the brightness of the lamp can be changed. 5. It is mainly used to adjust the single color LED lighting/light bar. Monochrome 5050 3528 light bar. LED lamps not suitable for multi-color mixing Product name: LED light regulator With automatic memory function Dimming range: 0-3%-100% stepless dimming Input voltage: DC DC 12-24V 30A Input current: 0-30A less than 30A Power: 12V 360W / 24V 720W The minimum power is 1 watt. Working temperature: -20 ~ 60 degrees Celsius Product size: 85x62x35mm (including knob) Material:ABS+metal colour:Black Package Contents: 1 x LED light strip regulator Only the above package content, other products are not included. Note: Light 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.