Feature: Applicable
battery: 3.7V high rate lithium battery (above 4AH, 40C discharge capacity)
Function: Six levels of adjustable intensity
Charging: 5V, 1A
Package included: 1 x Main Board 1 x Welding Pen 2 x Heat Shrinkable Tube 1 x DC-22 Charging Port, opening hole is 12mm 1 x Button