Features: LCD can display input/output voltage, output current/output power/output capacity/output time; Numerical control adjustment, precise and fast, can increase and decrease voltage, output voltage 0.5-30V can be adjusted arbitrarily, limits current 0-4A can be adjusted arbitrarily; The input terminal is protected against reverse connection, and the reverse connection will not burn; Anti-backflow at the output, no need to add anti-backflow diode when charging the battery; The module can be set to turn on/off by default; Have a variety of software protection mechanisms, and the protection threshold is adjustable. After the modules working parameters exceed the protection threshold, the output is automatically turned off. The output ripple is small, with -type filtering; Thicken the heat sink. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: Material: ABS shell + electronic components Size: 79x43x26mm Input voltage: 5.0-30V Output voltage: 0.5-30V Output current: can work stably at 3A for a long time, and can reach 4A with enhanced heat dissipation Output power: nature heat dissipation 35W, enhanced heat dissipation 50W Voltage display resolution: 0.01V Current display resolution: 0.001A Conversion efficiency: about 88% Working frequency: 180KHZ Protection mechanism: input anti-reverse connection; output anti-backflow; input undervoltage protection (4.8-30V adjustable, default 4.8V) output overvoltage protection (0.5-31V adjustable, default 31V) output overcurrent protection (0-4.1A Adjustable, default 4.1A) includes: 1xStabilizer