LED Light Strip Dimmer PWM Dimming Controller Knob ON/Off Switch DC 12V-24V 30A Features: 0 ~ 100% brightness adjustable. Adjust the light softly and steadily, no flickering. PWM digital dimming to avoid inrush current and protect your LED lights. By controlling the voltage and current output, change the brightness of the lamps and lanterns. Can adjust 12v constant current led light beads and 12v-24v constant voltage led light beads strip light bar Mainly used for adjusting single colour LED lighting lamps/strips Single colour 5050 3528 strips. Not suitable for multi-colour mixed LED fixtures (e.g. RGB strips/lamps, table lamps, fans, energy saving lamps, bulbs, etc.) Specification: With automatic memory function Dimming range:0-3%-100% Infinitely dimmable Input voltage:DC 12-24V 30A Input current:0-30A Less than 30A Power:12v 360W Watt (W) 24v 720W Minimum power is more than 1W. Operating Temperature:-20 ~ 60 degree Celsius Dimensions:85mm(L) x 66mm(W) x 20mm(H) Weight:90g Material:Metal Package Included: 1*LED single colour controller Note: 1. Please allow 1-3 mm error due to manual measurement. Please make sure you don't mind before ordering. 2. Please allow 1-3g weight error. Please make sure you don't mind before ordering. 3. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!