The 400W large and deep HPS wall pack is a large aluminum outdoor fixture that projects brilliant illumination in the roughest environments. They can operate in temperatures as low as -22° F and feature installed rubber gaskets to keep out water and moisture.
This 400W HPS wallpack is similar to the gas discharge lamps found in street lighting. High-pressure sodium vapor (HPS) lamps use sodium in an excited state, creating a bright arc when electrified. HPS produces white light and has a broader spectrum than low-pressure street lamps that give off an ugly yellow glow.
The HPS-400 put out less light pollution than mercury-vapor models, making them a preferred luminary in many districts. HPS bulbs should last for over 20,000 hours of continuous use.
The 400 watt large and deep HPS wall pack is a bulky, durable luminaire that is a great choice for lighting outdoor parking lots, sidewalks and as beauty lighting for building facades. Installing a couple HPS-400s in place of medium or small HPS units can actually save you time and money, since one of these units will put out an enormous amount of light.
HPS-400s are constructed with a robust, die-cast aluminum casing with an architectural bronze finish. A semi-clear borosilicate refractor protects the HPS lamps inside. Stainless steel fasteners and rubber gaskets seal the unit completely from outside moisture.
They have 1/2" conduit entry points at the bottom for surface mounts and conduit points in back for attachment to any 4" j-box.
The B17 400W tube fits in a 4KV glazed porcelain socket. The light they produce is directed and amplified by an internal anodized aluminum reflector.
A CWA ballast converts incoming AC power into a voltage applicable to the HPS tube and regulates any sudden overloads. Ballast can survive in temperatures as low as -22° F.
Photocontrol Photocell - Sensor detects sunrise and sunset and automatically activates the light accordingly. Select 'PC1' for 120V photocontrol. Select 'PC2' for 208-277V photocontrol.
Full Cutoff Shield - Narrows the wall pack's beam into a focused spot on the ground and prevents light from trespassing into other property or into the sky.
Wireguard - Further protection against vandalism.
Polycarbonate guard - a clear shell that encases the entire unit, adding further protection against the elements.