The operational concept of HID lamps are very similar to fluorescent lamps. HID lamps include Mercury Vapor, Metal Halide, High Pressure Sodium/Low Pressure Sodium (SOX).
In an HID lamp, the electrical arc, gasses and metals are contained in the arc tube.
Like fluorescents, HID lamps require a ballast to control the electrical current in the arc tube.
HID lamps need a start-up time to reach their full brightness. This usually takes 5 to 10 minutes.
High Pressure Sodium/Low Pressure Sodium (SOX):
Incorporates solid sodium, mercury and xenon or a neon/argon gas mixture
Boasts a luminous efficiency that is much greater than its mercury vapor or metal halide counterparts
Used in street lighting, industrial hi-bay, parking lots, building flood lighting and general area lighting
cUL Mark is the UL Mark for Canada. Products with this type of mark have been evaluated to Canadian safety requirements, which may be different from US safety requirements.
