DC-DC Step-down Power Supply Module Buck Converter Voltage Regulator 1. High performance, continuously adjustable output voltage and current 2. Add digital display function for more convenient use 3. Easy to operate, ready to use when connected to the line 4. Made of high-quality materials, with an input voltage of up to 90V 5. Extremely efficient, up to 93% Input voltage:DC25-90V (cannot be used for 84V batteries) Output voltage:2.5V-50V adjustable (can only be reduced) (maximum output voltage=input voltage * 0.8) Output current:50A (MAX), long-term operation within 30A Maximum power:1000W (for use with electric tools within 1000W) Conversion efficiency:greater than equal 93% Protection:overcurrent protection 60A 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. Interface Description: IN+:Input positive pole IN -:Input negative pole OUT+:output positive pole OUT -:Output negative pole Attention:To charge the battery and battery, please add a diode to the output to prevent backflow! Colour:As Shown Material:Plastic+Metal Size:L120mm x W 97mm x H 40mm Package Contents: 1 * 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.