Features LCD Display: The module features an LCD that displays input and output voltage, current, power, capacity, and time, providing real-time monitoring and control for precise adjustments. Adjustable Output: With numerical control adjustment, the output voltage can be set from 0.5V to 30V, and the current limit can be adjusted from 0A to 4A, allowing for accurate and fast customization according to specific needs. Reverse Connection Protection: The input terminal is safeguarded against reverse connection, preventing damage in case of incorrect polarity connection, ensuring safety and longevity. Anti-Backflow Design: Equipped with anti-backflow at the output terminal, eliminating the need to add an anti-backflow diode when charging the battery, simplifying the setup process. Automatic Protection: The module automatically shuts off when the working parameters exceed the protection threshold, coupled with thickened heat sink and effective heat dissipation for enhanced safety and durability. 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: organic 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