Output voltage and current continuously adjustable. Easy to use. Easy to operate Stable performance, input voltage up to 75 volts Very high efficiency NOTE:1. This module is a step-down board and cannot be used as a step-up board.2. This module does not have constant current and cannot charge the battery. Different batches may have different appearance, which does not affect use. Parameters: Name: DC-DC adjustable step-down module Input voltage: DC12-75V, cannot be used for 72V batteries Output voltage: 2.5V-50V adjustable (can only be reduced) (maximum output voltage=input voltage * 0.8) Output current: 20A (MAX) 25A overcurrent Maximum power: 600W Conversion efficiency: ≥ 93% Protection: overcurrent protection Size: L100mm x W70mm x H31mm Working temperature: -40-85 ℃ Storage environment: -20 ℃ -+50 ℃ Relative humidity: 65 ± 20% Wiring: In high-power situations, the wiring should be as thick as possible. Voltage conversion overview: 12-75V to 5V 12-75V to 9V 14-75V to 12V 17-75V to 14.8V 19-75V to 16.8V 22-75V to 19V 24-75V to 21V 28-75V to 24V 35-75V to 30V 41-75V to 36V 48-75V to 42V Interface Description: IN+: Input positive pole IN -: Input negative pole OUT+: output positive pole OUT -: Output negative pole VADJ: Output voltage regulation, clockwise large and counterclockwise small Colour:green+silver Material:PCB+metal+electronic components Package Contents: 1 x DC-DC Buck Converter 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.