I figured out how to modify a green pen laser. I know pen lasers are not as good
1:You start taking off both of the ends (take out the batteries at the bottom end)
2:At the top end you should see the diode
3:Take off the whole laser out of the metal shell with a pliars but be careful as they can break easily
4:You should see the button and below it is a screw make sure to tighten it
5:Flip it over and look for a component that says O3
6:Get a soldering iron (not too hot) and heat it for a few seconds then put back together again
1:You start taking off both of the ends (take out the batteries at the bottom end)
2:At the top end you should see the diode
3:Take off the whole laser out of the metal shell with a pliars but be careful as they can break easily
4:You should see the button and below it is a screw make sure to tighten it
5:Flip it over and look for a component that says O3
6:Get a soldering iron (not too hot) and heat it for a few seconds then put back together again