Features The LCD screen can display voltage input and output, output current, output power, output capacity and output time. The input terminal is protected against reverse connection and the reverse connection does not burn. The module can be configured to enable/disable by default, with low output ripple and π-type filtering. The output terminal is anti-reflux and there is no need to add a backflow diode when charging the battery. The digital control setting is accurate and fast, can increase and decrease the voltage, the output voltage can be adjusted arbitrarily from 0.5 to 30V, and the limit current can be adjusted arbitrarily from 0 to 4A. Functionality: After the module operation parameters exceed the protection threshold, the output will be automatically disabled, the heat sink is thickened, and the heat dissipation effect is good Specification: Item Type: Boost Power Module Model No.: ZK-4KX Main material: ABS + aluminium. Input voltage: 5.0-30V. Output voltage: 0.5-30 V. Output current: can work stably at 3A for a long time and can get 4A with improved heat dissipation Output power: natural heat dissipation 35W, improved heat dissipation 50W Voltage display resolution: 0.01V Current display resolution: 0.001A Conversion efficiency: about 88% Soft start: Yes (it may fail when the module with high power load is started) Protection mechanism: Input anti-return connection; Output anti-return; Input undervoltage protection: 4.8-30V adjustable, default 4.8V Output surge protection: 0.5-31V adjustable, 31V default Output over-current protection: 0 -4.1A adjustable, default 4.1A Output surge protection: 0 -50W adjustable, 50W default Overheating protection: 80-110°C adjustable, default 110°C Timeout Protection: 0 -100h adjustable, closed by default Overcapacity protection: 0 -60Ah adjustable, closed by default Working frequency: 180 kHz. LWH: approx. 79 x 43 x 26 mm/3.1 x 1.7 x 1 inches. Panel cut-out size: approx. 71 x 39 mm/2.8 x 1.5 inches. Package list: 1 x Boost Power Module Package List 1 x Boost Power Supply Module