Wide input voltage range of 3.5V to 30V, making it suitable for various LED applications including 3.7V, 5V, 6V, 9V, 12V, 18V, and 24V. Adjustable output current up to 330mA / 910mA / 660mA, allowing customization of LED brightness by changing the RCS resistance. High efficiency of up to 94%, ensuring minimal energy loss during operation. PWM dimming capability for precise brightness control and single pin ON/OFF functionality. Inherent open-circuit LED protection and soft over-temperature protection for enhanced safety and reliability. This 3.5-30V Step-down HB LED Driver Module is designed for a variety of low voltage LED applications, including automotive lighting, illuminated signs, and stage lights. With a maximum output power of 20W and a typical output current accuracy of 3%, it provides reliable performance. The module features hysteretic control with no compensation, ensuring stable operation. Ideal for replacing low voltage halogen lights, this driver module is a versatile solution for your LED lighting needs. Color: White Material: PCB Specification: 330MA / 910MA / 660MA Package Contents: 10*Step-down HB LED Driver 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.