Main features of power module 10–60V 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 or 12A under optimal natural cooling conditions (subject to output power and current limits). Uses a high-efficiency step-down rectification design; efficiency up to 92%–96%. Built-in constant current indicator for battery charging — charging status is clearly visible. Input protected by a 15A fuse; reverse polarity protection prevents damage to the module (fuse will blow and must be replaced). Module specifications Module name: 400W Buck Constant Voltage & Constant Current Module Module type: Non-isolated buck (step-down) module Input voltage range: 10.5–60V Output voltage range: 0–45V (must satisfy step-down condition: output ≤ input × 0.8) Minimum output voltage: 0V (adjustable down to ~1V) Maximum output voltage: approximately input voltage × 0.8 (e.g., with 40V input, max output ≈ 32V) Color: Blue Material: PCB Package includes: 1 × Module Note: Product appearance and color may vary slightly between batches — this does not affect functionality. Color representation in images may differ slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.