LCD displays input/output voltage, output current, output power, output capacity, and output time. CNC adjustable for precise and fast voltage control; output voltage adjustable from 0.5–30V, current limit adjustable from 0–4A. Reverse polarity protection at input to prevent damage. Reverse polarity protection at output; no additional diode required for battery charging. Multiple software-based protection mechanisms with adjustable thresholds; output automatically shuts off when parameters exceed limits. Input voltage: 5.0–30V Output voltage: 0.5–30V Output current: stable operation up to 3A continuously, up to 4A with enhanced heat dissipation Output power: 35W with natural heat dissipation, 50W with enhanced heat dissipation Voltage display resolution: 0.01V Current display resolution: 0.001A Conversion efficiency: approximately 88% Dimensions: 7.9 x 4.3 x 2.6 cm Material: ABS + metal Color: gray Package Contents: 1 x Power module Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1–3 cm.