LED light manual adjustment knob light strip light band control dimming brightness adjustment controller Adjustable 12V constant current LED lamp beads and 12v-24v constant voltage LED lamp beads with lamp strips Adjust the light to be soft and stable without flickering. PWM digital dims to avoid impact current and protect your LED lamp. Change the brightness of the lamp by controlling the voltage and current output. Product introduction: With automatic memory function Dimming range: 0-3% - stepless dimming Input voltage: DC 12-24V 30A Input current: 0-30A less than 30A Power: 12v 360W Watt (W) 24v 720W Small power 1 Watt. Operating temperature: - 20~60 0~The brightness is adjustable. : metal colour: black Package Contents: 1 x dimmer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.