This module is adjustable step-down module, can adjust the module above the blue star output voltage adjustable resistance to change.Input/output differential pressure is 1 V, the minimum can output voltage is 0.8 V.

Module indicated above IN – (input), + (input), IN the OUT – (output), the OUT + (output) must be correct, otherwise may cause damage of module.

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, the output voltage regulation to around 5 v.
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).
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, the output voltage regulation to around 5 v.
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.
(1, 2, 3, 4 steps for input power management module, the output light leds!)