100% brand new,high quality,

Red line is "+",Green line is "-"

Specification:

Input Voltage: 3.7V ~ 18V
Output Current:more than 2A(max)
Modes:1(High,ON/OFF)
Diameter:16mm
Used for LED: 10W led bulb etc
Application: Used for flashlight DIY.
Material: electronic components

Package:

1x 1-Mode Flashlight Driver Circuit Board