led circuit board * 3 mode: high/low/strobe * double layer board/driver * suitable for DIY * high current- to 3A

3 Mode Circuit Board for 3*LED 

 led circuit board* 3 mode: high/low/strobe* double layer board/driver* suitable for DIY* high current- can reach to 3A when voltage is full at 8.4V

* voltage: 4.2V~8.4V

* 22mm diameter

* sample wired for your reference if for a large order

3 Mode Circuit Board for 3*LED