Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 5-27V 350mA Step-down HB LED Driver Module Working voltage : DC 5-27V(Perfect for 5V 6V 9V 12V 18V 24V LED Driver) Output Current: 0-350MA;By changing the RCS resistance, the maximum drive current can be changed Maximum output power: 8W Current regulation: Through PWM control Single pin ON/OFF and brightness control using PWM Simple low parts count Wide input voltage range: 5V to 30V Up to 350mA output current PWM dimming 3% output current accuracy. Up to 1MHz switching frequency Typical 3% output current accuracy Inherent open-circuit LED protection High efficiency (up to 93%) Adjustable Constant LED Current High-Side Current Sense Hysteretic Control: No Compensation Soft Over Temperature Protection Weight : 1.5g Typical Application : Low voltage halogen replacement Automotive lighting LED back-up lighting Illuminated signs Colour:White Material:PCB Size:15 x 15 x 6mm Package Contents: 1 x Module 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.