Features: Input voltages : 4-35V (note: constant current input must be at least 7V ) Output voltages : 1.25-25V continuously adjustable, default shipping voltages 4.2A, current 1A Output current: 12V to 5V2A (constant current ranges: 0.2A-2A (adjustable) Output power: 10W:Natural cooling; 15W:please install heat sink Conversion efficiency: 80% Working temperature: Industrial grade (-40°C to+85°C) (If the temperature exceeds 40°C, please reduce power consumption or strengthen heat dissipation)Full load temperature rise: 45℃indicators Light: The constant current indicators light is red, the charging indicators light is red, and the charging completion indicators light is greenOutput short circuit protections: Yes, constant current (currently set constant current value)Wiring: The wire can be directly connecting and soldered onto the PCBAdjustment : First connecting the input power supply correctly (between 4-35V), then monitor the output voltages with a multimeter and adjust the potentiometer(Generally, clockwise to boosting and counter clockwise to bucking) Specifications: Component: Electronic Components Size:Approx.5x3.7x1.3cm/1.97x1.46x0.51inch Electronic Components Input voltages ranges:4-35v Output voltages ranges:1.25-25v Package Includes: 1pc Automatic boosting bucking Converter Module note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.