Egg crate louver can combine with either high hat or half hat for ultimate control or use them on their own. Accessories are held permanently in place with screw-down plate, just set it and forget it. Reach architectural accessory holders mount simply onto face of fixture, with or without beam-shaping lenses and lens gaskets in place. Two versions of accessory holder are avaliable, with or without data enabler mount. Either will accept rugged tempered safety glass, primarily intended for vandal protection.