Features Good Heat Dissipation Effect: After the working parameters of the module exceed the protection threshold, the output is automatically turned off, the heat sink is thickened, and the heat dissipation effect is good. Easy to Read: LCD can display input and output voltage, output current, output power, output capacity and output time. In the output status reminder area, you can monitor whether the key is locked, whether the output is normal, the constant voltage and constant current status, the current data group prompt, and whether the output is turned on. Application: The numerical control adjustment is accurate and fast, the voltage can be increased or decreased, the output voltage can be adjusted arbitrarily from 0.5-30V, and the current limit can be adjusted arbitrarily from 0-4A. In the data setting interface, set data, set protection value, adjust screen brightness, and extract shortcut to store data group. Safety Protection: The input terminal has reverse connection protection, and the reverse connection will not be burned. The corresponding data group will be extracted and displayed on the right side of the screen. The output terminal is anti-backflow, and there is no need to add anti-backflow diodes when charging. Note: It can be used to set the output voltage and output current on the main display interface. When the output of this buck regulator is used to charge the battery or connect a capacitive load, a diode must be connected in series with the output anode, otherwise the regulator will be damaged. Specification: Item Type: Boost Power Supply Module Model: ZK-4KX Main Material: ABS+Aluminum Input Voltage: 5.5-30V Output Voltage: 0.5-30V Output Current: Can work stably at 3A for a long time, and can get 4A with enhanced heat dissipation Output Power: Natural heat dissipation 35W, enhanced heat dissipation 50W Voltage Display Resolution: 0.01V Current Display Resolution: 0.0-0.4A Conversion Efficiency: About 88% Soft Start: Yes (it may fail when the module with high power load is started) 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: 80-110℃ adjustable, default 110℃ Timeout Protection: 0 -100h adjustable, closed by default Over-capacity Protection: 0 -60Ah adjustable, closed by default Working Frequency: 180KHZ LWH: Approx. 79 x 43 x 26mm / 3.1 x 1.7 x 1in Panel Cut-Out Size: Approx. 71 x 39mm / 2.8 x 1.5in Package List: 1 x Boost Power Supply Module Package List 1 x Boost Power Supply Module