Specification:
Origin: Mainland China
Description:
USB Power System (PER) Applications:
1. Used as an ordinary buck-boost power supply with overvoltage/overcurrent/overpower/overtemperature/undervoltage protection
2. This product has a constant current function, which can charge various small rechargeable batteries within 0.6V-30V within 10-20W.
Charging steps:
(1) Determine the float voltage and charging current of your rechargeable battery; (If the lithium battery parameter is 3.7V/2200mAh, then the float voltage is 4.2V. If it is a 12V rechargeable battery, generally set the float voltage to 14V or so)
(2) Under no-load conditions, set the output voltage to reach the floating charge voltage; (if charging a 3.7V lithium battery, adjust the output voltage to 4.2V)
(3) To set the charging current (constant current value), just set the current directly. Note: When setting the current, you must calculate the power and charge within the power range. If the product is used at excessive power, the product will enter a protection state.
(4) Connect the battery to charge.
3. This product has a constant current function and can directly drive 0.6-30V, 0-15W LED lights.
Steps to drive LED lights:
(1) Determine the operating current and maximum operating voltage you need to drive the LED;
(2) Under no-load conditions, set the voltage value and current value so that the output voltage reaches the maximum working voltage and working current of the LED (Note: Calculate the power when setting the current, and charge within the power range. If the product is used over power, the product will enter protection status.)
(3) Connect the LED and test the machine.
This product can achieve stepless dimming of LEDs without flickering by adjusting the constant current value (between 0 and working current)!
Size: 86.00x37.00x15.00mm/3.39x1.46x0.59inch

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.

2pcs 1 x USB Charging Tester