Groo here
Adding a light or laser to a gun is for "Handgunning 201 , or even 301"
Not for starters.
A light or laser works both ways!!!!!!!!!!!!!!!!!!!!!!!!!
The only use for a gun mounted light is when your light hand [with a much larger "eyeball melting" light and battery pack] is unable to
light up the area as in holding wife, kid,dog horse door phone etc.
Search with hand light so as not to cover things you like with
the muzzle.
Hold it away from you so as to attract [lights are bullet magnets!!]
bullets away from you.
Better ,install some way to light up your home etc remotely
so bad guy cant hide!!!!!!!!!!!!!!!