Specifications:
Model:AK47
Size:17mm*1.7mm*1.6mm
Input voltage:3.0v-4.2v
Current:2.1A
Suitable LED:Single core LED flashlight(white\/blue\/purple light)
Modes:
The third gear:Low (5%) - Mid (50%) - High (100%)
The fifth gear:Low (5%) - Mid(50%)- High(100%)- Fast strobe - SOS

Features:
It has automatic shutdown protection and reverse connection protection.
Power supply for single lithium or 3AA， input voltage higher than output
voltage between 0.2V and 1v，this section can be efficient and constant flow.
Recommended to choose 3.3V or less led ，The brightness are more wonderful.

Package Included:
1x circuit board