Available in energy saving LED, replacing up to 250w HID systems;Motion sensor, photocell and wireless control options available for energy savings;Battery back up (BBU) option;Cast aluminum door with borosilicate glass refractor. Bottom hinge allows door removal. Twin HubbellGard® screw closure for positive seal;Cast aluminum back housing provides firm mounting and heat dissipation. Mounts over recessed wiring boxes. Has two ½ conduit hubs for feed-thru wiring;Specular, anodized aluminum reflector panels for vertical lamp provide high performance. Typical spacing is 4-6 times mounting height;PGM3 has medium base socket to 150w. 250w units are mogul base. Top 1/2 hub can be used for field installation of PBT button photocontrols or conduit wiring from above;Socket is porcelain mogul base with spring-loaded center contact;Bronze powder paint finish is standard, other finishes available, consult factory;Wire guards and polycarbonate shield accessories are available for refractor protection;DLC® (DesignLights Consortium) Qualified