When purchasing a replacement high pressure sodium bulb we recommend that you bring a bulb to the phone or computer (dont guess!) and match up the following:

1. Please check if your HPS bulb has medium socket or a mogul socket.

2. Double check your model number and wattages. You cannot change wattage without changing ballast.

3. HPS bulbs cannot be changed with bulbs of a different wattage or type.

4. Finally if you are unsure please do not hesitate to contact Superior Lighting by phone 1-800-432-7995.

The high pressure sodium lamp series of HID lamps incorporates solid sodium, mercury and xenon or a neon/argon gas mixture within the arc tube. This combination of metals and gasses produces an orange-white light in the high-pressure version and a yellow light in the low-pressure model. Both lamps boast a luminous efficiency that is much greater than its mercury vapor or metal halide counterparts. Typical applications for high pressure sodium light bulbs are Street lighting, industrial hi-bay, parking lots, building flood lighting and general area lighting.

High Pressure Sodium Light