Tips:

12xAMC7135: 12pcs high-current 7135 chips, 4200mA Constant current

10xAMC7135: 10pcs high-current 7135 chips, 3500mA Constant current
8xAMC7135: 8pcs high-current 7135 chips, 2800mA Constant current
 

Features:

High quality

Diameter: 17mm
Input voltage: 3.7v~4.2v (powered by 1 x 3.7V Li-ion battery)
Suitable for 1 piece
 
Package :
1x  MC7135 LED Flashlight Driver Board