1. The long handle potentiometer adjusts the voltage and current, and can be operated 2. With large volume heat sink, with shell, optional with fan. 3 liquid products display input, output voltage, temperature, output current and output power. 4. Hardware protection:input terminal anti-reverse protection, the reverse connection will not burn out; output terminal anti-backflow, no additional anti-backflow diode is needed when charging the battery; software protection:overcurrent protection, overpower protection, overtemperature protection. 5. Can be boosted and depressurized, the output voltage can be adjusted arbitrarily from 0.5-30V, and the current can be adjusted from 0-6A With LC filter, the output ripple is small; specification: Input voltage:DC5.5-30V (when the input voltage is 5V, it can also achieve buck-boost, but the voltage and current measurement is not accurate; when it is lower than 4.7V, undervoltage protection) Output voltage:DC0.5-30V Output current:The fanless version can work stably at 4A for a long time, and the fan version can reach 6A Output power:35W flat version without wind, 60W version with fan Voltage display resolution:0.01V, accuracy error 1% Current display resolution:0.001A, accuracy error 1% Conversion efficiency:about 88% Soft start:yes (very high power load module may fail when starting) Input reverse connection protection:yes, reverse connection does not burn Anti-backflow at the output:yes, can be directly connected to the battery Short circuit protection:yes, the output can be shorted directly Temperature protection:100Celsius Power protection:60W Overcurrent protection:6A Working frequency:180KHZ Fan rotation conditions:current is 3A, or power is 20 watts, or temperature is 40 Celsius. Mounting hole:diameter 3mm colour:Photo Color Material:ABS size:72*59*43mm Package Contents: 1 * 60W buck-boost power module Only the above package content, other products are not included. Note: Light 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.