Input voltage: 5.3-32V (minimum input 4V to achieve reduction, but voltage and current measurement is not accurate when input is less than 5.3V); output voltage: 1.2-32V (input voltage must be higher than output voltage, the minimum differential voltage is 0.8V) Output current: can work stably at 8A for a long time, and can reach 12A under increased heat dissipation; Output power: natural heat dissipation 120W (within 8A), enhanced heat dissipation 160W Safe protection: the volt conversion board is with input terminal connection reverse protection, reverse connection will not burn; short circuit protection. Application: the power supply can be used as an ordinary male module with overcurrent protection; Used as a battery charger; Used as a high power LED constant current driver module. Button control: the button control output voltage on/off status, and you can set the default output state is ON or OFF of the next power-on. Color: picture color Material: electronic components Voltage display: 0.05V resolution, 0-32V range Current display: 0.01A resolution, 0-12A range Conversion efficiency: about 96% Working current: about 25mA Soft start : yes (large power with the charging module may fail to start) Input reverse connection protection: yes Output anti-backflow: no (if charging the battery, turn on the module first, then connect the battery and make sure the battery voltage is lower than the output voltage; if there is any condition, please connect the anti-backflow diode into the output positive pole) Short circuit protection: yes Size: length*width*height 82*52*32mm Weight: 80g Attentions: 1. Module input - can't short circuit with output -, otherwise the constant current function will be invalid. 2. Please ensure that the power of the power supply is greater than the power required by the output load. Please reduce the power when the module is extremely hot. Package including: 1* Step-Down Power Module Board Only the above package content, other products are not included. Note: Light shooting 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.