How to change LED flashlight to blue light?
Or change the LED light source, or in front of the flashlight paste a blue film or change to blue glass!
1, needs to buy blue light LED lamp diode;2, open the LED flashlight, the original LED diode is removed and replaced with blue LED diodes, connected by soldering solder joint;3, the LED flashlight assembled, press the power test lamp can.
With an ordinary LED flashlight, you can transform into a blue light.
