RAB Lighting 320 watt area light. High efficient pulse start metal halide technology. Mounts on 2-3/8" round post top (slipfitter). Mounting can be angled to widen distribution and locks into place. Type II distribution. Die cast aluminum housing for maximum durability. Chip and fade resistant bronze powdercoat finish. Tempered, thermal shock resistant glass. Silicone gasket for durable weatherproofing & easy relamping. Stainless steel external hardware. Factory wired for 277V. Lamp included.