Box Light Clip by Box 31 Leatherworks
Box 31 Leather's box light clip accomplishes the same as the box light strap but adds a few other possibilities. The box light clip is constructed with 3 scissor snaps, allowing this light to not only be unclipped from your gear and attached to other items on the fire ground but also completely unclip the light from the strap itself.
Having a scissor clip as your main attachment point also allows you to leave this clip on your light while on the charger in the truck.
This product has been tested on many box lights on the market such as the Nightstick and Streamlight brands.