1. LCD can input or output voltage, output current or output power or output capacity or output time 2. CNC adjustment, accurate and fast, can boost and lower voltage, output voltage can be adjusted at will of 0.5-30v, limit current 0-4a can be adjusted at will 3. Anti-reverse connection protection from input end, which will not burn 4. Anti-reverse irrigation on the output, no additional anti-reverse irrigation diode is required to charge the battery 5. Multiple software protection mechanisms are available, and the protection threshold is adjustable. When the working parameters of the module exceed the protection threshold, the output will be closed automatically. Input voltage: 5.0-30 v Output voltage: 0.5-30 v Output current: can work stably at 3A for a long time, and can reach 4A under improved heat dissipation Output power: natural heat dissipation 35 W, enhance heat dissipation 50 W Voltage screen resolution: 0.01 V Current display resolution: 0.001A Conversion efficiency : about 88 percent Size:7.9x4.3x2.6cm Material:ABSand metal Colour:gray Package Contents: 1 x 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.