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Connection mode: Input: + input level IN the IN - negative input Output: the OUT + output level is the OUT - output is negative Module properties: the isolation step-down constant current constant voltage module (CC CV) charging module Scope of application: 1) The high-power LED constant current drive. 2) Lithium battery (including ferroelectric) 4V 6V 12V 14V 24V battery rechargeable Ni-MH battery nickel cadmium battery charging. 3) Solar panels wind generator voltage regulator circuit vehicle-mounted regulated power supply such as automatic lifting pressure regulating circuit. Adjust way: first right after the input power supply (4-35V) between the output voltage with a multimeter to monitor and adjust potentiometer (general chronological booster the backward turn step-down) Continuous adjustable output voltage: 30 V light regulation (1.25 -) our default delivery if you need other voltage of 4.2V voltage can be adjusted yourself Output current: maximum 3A (more than 15W please install the radiator constant current range: 0-2A (adjustable) default to 1A Turn lamp current: constant current value * (1% 100%) turn the lamp current and constant current value linkage such as constant current value of 3 A turn the lamp current is set to 0.1 times that of the constant current (0.1 * 3 A = 0.1 A) when the value of the constant current regulation into 2 A turn the lamp current is 0.1 times that of the constant current (0.1 * 2 = 0.2 A) A. When the default delivery has adjust to 0.1 times 15W output power: natural cooling Conversion efficiency: 80% (the higher the output voltage the higher the efficiency) Working temperature: Industrial grade (- 40 to + 85'C ) (ambient temperature more than 40'C please reduce power use or enhance heat dissipation) With temperature rise: 45'C Indicator light: constant current indicator light red charging indicator light in red charging indicator light blue Output short circuit protection: Yes constant current (current setting constant current value) Connection mode: can lead directly welding on the PCB Battery charging method of use: 1. Make sure you need to recharge battery float charging voltage and charging current input voltage module; 2. Adjust the constant-voltage potentiometer adjust the output voltage to 3V or so. 3. The output short circuit current is measured with a multimeter 10 a current block and regulate the flow of constant potentiometer output current reaches a predetermined charging current value; 4. The lamp current charging the default delivery is 0.1 times the charging current (constant current value) such as lamp current need to adjust please adjust potentiometer; (generally don't have to adjust) 5. Adjust the constant-voltage potentiometer to output voltage float charging voltage; 6. Battery is connected try to charge. (1 2 3 4 5 steps for input power management module the output light batteries!) LED constant current drive Method of use: 1. Make sure you need to drive the LED working current and maximum working voltage; 2. Adjust the constant-voltage potentiometer adjust the output voltage to 3V or so. 3. The output short circuit current is measured with a multimeter 10 a current block and regulate the flow of constant potentiometer output current to the expected LED working current; 4. Adjust the constant-voltage potentiometer to make the output voltage LED highest working voltage; 5. Plug in the LED commissioning.