Specification:
1.Dimensions : 10.2 * 22mm ( W * L )
2.Circuit control : 5V buck circuit , constant current output , 6-14V power supply to ensure stable output
3.Reverse polarity protection : Unique reverse polarity protection design , do not worry about the battery polarity reverse making PCB board burnt.
4.Pin definition: especially designed for 445nm driver board, you need to weld LD pins to the PCB as per our instruction
5.Polarity definition: module casing is positive , tail of PCB is negative

Feature:
Notice:
1. In order to ensure safety, it is recommended to use good-quality 2pcs of 3.7V lithium batteries (16340,18650,14500 and 18500 battery), do not use low-quality batteries, or you can use 6-14V direct power supply.
2. The current of this board cannot be adjusted. If you need to adjust it, you need to weld the adjustable resistance yourself. If it is used for a 1.6W diode, the required voltage is 4.7V and the current needs to be about 1.7A.