So im Australia you cant have over 1mw laser but you can import the module and make it yourself. Im going to buy this $16.43 - 50mW 532nm Green Laser Module (3V 11.9mm) - Flashlight Parts and Tools and im going to put it in this flashlight case $10.90 - C6 DIY Cree LED Flashlight Full Casing/Shell with Driver Pill (2*CR123A/1*18650) - Flashlight Parts and Tools. The module has a button on it to turn on the laser but i was wondering how i can hook it up so when i click the button on the back of the torch it will turn the laser on.