1: This module uses high-performance electronic components for stable overall performance 2: Wide input and output voltage range with high output current and high power capacity 3: Input low voltage protection feature disables output when input voltage drops below 20V 4: Output provides constant voltage and constant current modes with continuously adjustable voltage and current settings 5: Includes an output current test point compatible with multimeter millivolt range for monitoring current setting Equipped with external voltage and current analog signal input terminals for microcontroller-based control Features an external output switch signal terminal that serves as a standby switch upon short-circuit activation Input stage MOSFET includes reverse polarity protection to prevent damage if input is connected with reversed polarity Built-in intelligent temperature-controlled fan activates at approximately 55C and turns off when temperature drops to around 50C Color: As shown Material: ABS Package Contents: 1 x DC-DC step-down module Note: The package includes only the items listed above; other products are not included Note: Lighting effects and display differences may cause slight variations in color compared to the actual product Measurement error allowance: +/- 1-3 cm