For you people that still like to rig thing

[uncle buck]

A $4.50 auto plug light from wal-mart auto department and old Nitelite hat, a couple of rivets, and a power pack with auto jack outlets..Your in business.. I Dykem the white lens on the light and gee it a great shotgunners light.. the beam is real wide.. I carry it at my side and why it might look heavy it's not.. I carry it in a shoulder Knapp sack that takes all the weight away.

[ultramag]

what did you use for the halo shield?

[uncle buck]

Can Kooler...Just cut out the inside end that is solid and slip it on.  It works great on Nitelite or Western River headlights...Cost from  $.25 (Clearance)  to   $.99.   Check in department stores or craft stores  or they are sometimes given by vendors to people for promotions too..
I have one that has the USCG emblem on it but I'd rather use it for hunting then for a can kooler..