A wire guard is a mechanical cage that stops impact damage, required in gyms, warehouses and any space with balls, carts or ladders. It is specified by the lamp envelope and the fixture series, and the wrong one either will not fit or blocks relamping. A lens controls distribution and glare: prismatic spreads light evenly, clear transmits it, opal diffuses it. Replacing a lens changes the photometrics of the fixture, so match the original specification where a listing matters.
This group includes wire guards for high bays and strip fixtures, replacement lenses and diffusers, and the clips and retainers that hold them.
