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. - CNC-adjustable output voltage (0.5–30 V) and current (0–4 A) with precise and fast control; 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 on/off setting for simplified operation. - Multiple adjustable software-based protection mechanisms: input undervoltage, output overvoltage, overcurrent, overpower, overtemperature, timeout, and super capacity protection. Automatic output shutdown occurs when thresholds are exceeded. - Low output ripple with optional PI filtering. - Enhanced heat dissipation via thickened radiator fins for extended service life. Specifications: - Model: ZK-4KX - Material: Fiberglass board, electronic components - Dimensions: 7.9 × 4.3 × 2.6 cm (3.11 × 1.69 × 1.02 in) - Color: As shown in image - Quantity: 1 pc 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 with natural convection cooling; 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: Supported (may not engage reliably under high-power, high-load startup conditions) Protection Thresholds (Adjustable): - 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 (default: OFF) - Super Capacity Protection: 0–60 Ah (default: OFF) - Operating Frequency: 180 kHz Notes: - No retail packaging included. - Slight dimensional variance (up to 1 cm) may occur due to manual measurement. - Screen color representation may vary slightly from actual product color. Package Includes: - 1 × DC-DC Buck-Boost Converter