Eight bucks on Amazon. Phony as a 3 dollar bill. Glue MAGNETS to rig and camera base. I also have a rattlesnake buzzer. Real enough to scare the hell out of people.
I replaced my entire scare light fixtures with full LED units I found on superbrightled.com. They are really bright and will flood a large area. I only use them as needed. I installed bright red indicator lights on the interior switches so I don't inadvertently leave them on.