Westinghouse Lighting - Lamp Catalog

Metal Halide Lamps

Metal halide lamps are ideal for use in retail, industrial, area lighting, accent

lighting, security lighting, roadway lighting and parking garage applications.

These lamps create light when an arc passes through a capsule holding

mercury vapor and other chemical components called “metal halides.” The

additives greatly improve both lumen and color performance. They are

widely used in a variety of commercial and industrial applications where

better colorrendering is critical. They can be used indoors and outdoors.

Protected metal halide lamps are also known as “open fixture rated”

lamps. These types of metal halide lamps have a covering over the

quartz arc tube which prevents the outer envelope from breaking in

the rare case that the inner arc tube ruptures.

Pulse start metal halide lamps send an electric pulse to the arc tube.

This “pulse” allows the lamp to start quicker, maintain lumen output better,

and last longer than probe start metal halides. Pulse start metal halide lamps

must be used in fixtures designed specifically for pulse start lamps.

Mercury Vapor Lamps

Mercury vapor lamps emit light when a short arc passes through

mercury vapor. These lamps are designed for applications that

require moderate color rendering, such as outdoor security,

area lighting, general flood lighting, barns and parking lots.

High Pressure Sodium Lamps

High pressure sodium lamps provide efficient lighting solutions

for outdoor security, parking garage, parking lot, roadway lighting

and area lighting applications.

These lamps are named for the sodium vapor arc that generates

their light. High pressure sodium lamps are one of the most efficient

HID lamps. Their high efficacy—or high ratio of lumens per watt—

create their energy-saving capabilities. High pressure sodium lamps

are commonly used in areas where lamp life and high efficiency

are required and color rendering is not critical.

where to use high intensity discharge lighting...

HID LAMPS