1. LCD can display input or output voltage, output current or output power or output capacity or output time 2. Numerical control adjustment, and fast, can boost or , the output voltage can be adjusted arbitrarily from 0.5-30V, and the limit current can be adjusted arbitrarily from 0-4A 3. The input terminal is against reverse connection, and the reverse connection will not burn out 4. The output terminal is anti-inverting, and there is no need to an anti-inverting diode when charging the battery 5. The module can be set to turn on or off by default 6. It has a of software protection mechanisms, and the protection is adjustable. When the working parameters of the module the protection , the output is automatically turned off.7. The output ripple is small, with Type filter Product parameters:Input voltage: 5.0-30VOutput voltage: 0.5-30VOutput current: It can work stably at 3A for a long time, and it can reach 4A with enhanced heat dissipationOutput power: natural heat dissipation 35W, enhanced heat dissipation 50WVoltage display resolution: 0.01VCurrent display resolution: 0.001AConversion efficiency: about 88 percent Soft : Yes (the module with a power load may fail when it starts)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)Output over-power protection (0-50W adjustable, default 50W)Over-temperature protection (80-110C adjustable, default 110C)Timeout protection (0-100h adjustable, default off)Overcapacity protection (0-60Ah adjustable, defaultoff)Working frequency: 180KHZColour:Photo ColorMaterial:plasticandmetalSize:79mm x 43mm x 26mmPackage Contents:1 x Boost ConverterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.