Features: - Made of high-quality materials, solid, durable, and with strong conductivity. - Large LCD display shows input/output voltage, output current, output power, output capacity, and output time for easy reading. - Precise and fast CNC-adjustable output voltage (0.5–30 V) and current limiting (0–4 A). Supports both step-up and step-down voltage conversion. - Input anti-reverse connection protection prevents damage during incorrect wiring. - Output anti-reverse polarity protection eliminates the need for an external diode when charging batteries. - Default power-on/off setting for convenient operation. - Multiple adjustable software protection mechanisms: input undervoltage, output overvoltage, overcurrent, overpower, overtemperature, timeout, and super capacity protection. Automatic output shutdown occurs if operating parameters exceed set thresholds. - Low output ripple; optional PI filtering available. - Thickened heatsink fins enable efficient thermal dissipation and extended service life. Specifications: - Model: ZK-4KX - Materials: Fiberglass PCB, electronic components - Dimensions: 7.9 × 4.3 × 2.6 cm (3.11 × 1.69 × 1.02 in) - Color: As shown in image - Quantity: 1 piece Electrical Parameters: - Input Voltage: 5.0–30 V - Output Voltage: 0.5–30 V - Output Current: Stable continuous output up to 3 A; up to 4 A with enhanced cooling - Output Power: Up to 35 W (natural convection), up to 50 W (with enhanced cooling) - Voltage Display Resolution: 0.01 V - Current Display Resolution: 0.001 A - Conversion Efficiency: Approx. 88% - Soft Start: Yes (may not engage reliably under high-power, high-load startup conditions) Protection Features (adjustable thresholds): - Input Anti-Reverse Polarity - Output Anti-Reverse Polarity - Input Undervoltage Protection (4.8–30 V; default 4.8 V) - Output Overvoltage Protection (0.5–31 V; default 31 V) - Output Overcurrent Protection (0–4.1 A; default 4.1 A) - Overpower Protection (0–50 W; default 50 W) - Overtemperature Protection (80–110 °C; default 110 °C) - Timeout Protection (0–100 hours; disabled by default) - Capacity Protection (0–60 Ah; disabled by default) - Operating Frequency: 180 kHz Notes: - No retail packaging included. - Slight measurement variance (up to 1 cm) may occur due to manual measurement. - Screen color representation may vary slightly from actual product color depending on monitor settings. Package Includes: - 1 × DC-DC Buck-Boost Converter