Features: Support PWM dimming, high level turnsoff the output, and low level turns on the output. Stepdown working modes ensures that the total voltages difference of the LED is lower than the input power supply voltages by 2-3V before it can work. Small size design, low noise and safety. Use high-efficiency, low-consumption, and stable chip to achieve energy conservation and environmental protections. Constant output current. It ensures safety and stability of LED use, improves the light efficiency of LED and reduces light attenuation. Overloads, short circuits, and overcurrent protections ensures safety of the power supply. Wide voltages input, VIN+ is the positive poles of the input, and VIN- is the negative poles of the power input. Specifications: Component:ABS Size:Approx.36x20mm/1.41x0.78inch Input:DC5-35V Output:700mA (±20mA), drive 1-10(2W-3W) LED lights. Package Includes: 5pcs LED Driver Board note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.