Main Features of Power Module: - 10.5–60V wide input voltage range, compatible with most standard power supplies. - Constant voltage and constant current output; both voltage and current are continuously adjustable. - Suitable for a wide range of electrical equipment. - High output power: up to 280W / 12A (subject to output power and current limits). - Efficient step-down rectification design; efficiency up to 92–96%. - Output voltage >10V. - Built-in constant current indicator for clear battery charging status. - Input protection: 15A fuse included. Reverse input polarity will blow the fuse (fuse replacement required); power supply remains undamaged. Module Parameters: - Module Name: 400W Buck Constant Voltage & Constant Current Module - Type: Non-isolated buck converter - Input Voltage: 10.5–60V - Output Voltage Range: 0–45V (must satisfy step-down condition: output ≤ input × 0.8) - Minimum Output Voltage: 0V (+1V tolerance) - Maximum Output Voltage: Approximately input × 0.8 (e.g., at 40V input, max output ≈ 32V) Note: Appearance and color may vary slightly between batches — no impact on performance. Color: Blue Material: PCB Package Includes: 1 × Module This package includes only the module; no additional accessories or components. Note: Color appearance in images may vary slightly due to lighting and screen settings. Measurement tolerance: ±1.3 cm.