Specification:

Modes:1/3/5(Optional)

Used for LED:  Like 10W  led series etc

Application: Great for flashlight DIY.

Material: electronic components

Size ：22mm  in diameter  

highly: 12mm

Drive the red black line above LED lamp bead, connect battery input, on the back of battery is indirectly, connect the battery negative side

Application: Great for flashlight DIY ETC

Packages Included:

by your choice