Sell DC-DC 12A Constant Voltage Current LCD digital Voltage Current Display Adjustable Buck Step Down Power Supply Module Board best price

12A step-down power supply module (constant voltage constant current LCD display, with crystal shell) Module default output 18V / 7A or so, the direct short-circuit output current regulation, will have a greater spark prone to danger, it is recommended short output before the first output voltage down to 10V below, CC current potentiometer counter-clockwise Rotate more than 10 turns to the end, and then short the output, turn the CC current adjustment potentiometer clockwise to slowly increase the current value you need. Highlights: 1.1. Crystal shell, elegant design, touch the touch of good quality; 1.2. Press button to control the output ON / OFF, and you can set the power on default is ON or OFF; 1.3 LCD can display input and output voltage, output current output power; 1.4 input anti-reverse protection, reverse will not burn; 1.5. High efficiency of 95% or more, high current, low heat, the output voltage of 1.2-32V arbitrary regulation, adjustable constant current value 0-12A, suitable for high-power LED constant current drive, battery charging! Specification: Input voltage: 5.3-32V (the lowest input 4V to achieve buck, but less than 5.3V input voltage and current measurements inaccurate) Output voltage: 1.2-32V (must ensure that the input voltage is higher than the output voltage, the minimum voltage difference between the two is 0.8V) Output current: long-term stable work in the 8A, strengthen the heat can reach 12A Output power: Natural cooling 120W (8A or less), to enhance cooling 160W Voltage display: resolution 0.05V, range 0-32V Current display: resolution 0.01A, range 0-12A Conversion efficiency: about 96% Working current: 25mA or so Soft start: Yes (very powerful with load module may fail to start) Input reverse protection: Yes Output anti-inrush: None (if you charge the battery, the first module to power then the battery, and to ensure that the battery voltage is lower than the output voltage; if the conditions are positive output in series with anti-reflux diode) Short circuit protection: yes Size: L * W * H 82 * 52 * 32mm Description: 3.1. Module has IN / OUT, ON / OFF two buttons: IN / OUT button to switch the input voltage and output voltage display, long press to switch the output current output power display; ON / OFF button control output ON or OFF, long press Set the power-on default output state is ON or OFF the next time. 3.2.CC is the current setting potentiometer, clockwise rotation, can increase the set current, when the load current reaches the set current, enter the constant current state, CC constant current indicator (red) lights up; the right CV is the voltage setting Potentiometer, clockwise rotation, can increase the output voltage. OUT indicator is the output status indicator, when the output voltage is on, otherwise off.