Feature:1. High Accuracy: This LED constant current driver board consists of high accuracy reference voltage, amplifier, current mirror and so on.2. 1MHz Switching Frequency: This LED constant current driver board adopts 1MHz switching frequency, which is very sensitive.3. High Efficiency: This LED constant current driver board has high efficiency up to 96%, which is perfect for LED drivers which is very practical.4. Multifunctional: This LED constant current driver board is multifunctional with high side current detection and over temperature current drop function.5. Knob Design: This LED constant current driver board comes with a knob switch, which is very easy and convenient to use and adjust.Specification:Item Type: LED Constant Current Driver BoardMaterial: PCBVoltage: DC 5V-24VCurrent: Constant Current 600mADimming Range: 0-100%Current Adjustment: 1. Through Adjustable Resistor. 2.Through PWM Control..Package List:1 x LED Constant Current Driver Board ( With Twisted Cap, Nut, Spacer)