High-pressure sodium-vapour (HPS) lamps have an inner discharge tube made of translucent alumina that can withstand the corrosive effects of a mixture of mercury and sodium under greater pressure and higher temperature. High-pressure sodium (HPS) lamps are part of the family of high intensity light bulbs that put out large amounts of light. The combination of metals and gasses within inside the glass tube produces an orange-white light. HPS bulbs actually produce a dark pink glow when first struck, and an intense pinkish orange light when warmed.
At the end of life, high-pressure sodium lamps exhibit a phenomenon known as cycling, which is caused by a loss of sodium in the arc. When the lamp attempts to start over and over again without success then you know it is time to change the bulb.
HPS bulbs are ballast sensitive meaning that you cannot change the bulb or fixture wattage without changing the ballast. You must stay with your existing bulb unless the ballast is changed.
Uses
- Widely used in street lamps
- Indoor gardens ( Wide color spectrum)
- Security areas
Features
- Energy Efficient
- Lamp Shape: Elliptical
- Lamp Base: E40
- Lamp Type: HID High Pressure Sodium
- Color Temp: Warm White/2700k
- Wattage: 400W
- Voltage: 220V
- Lumen: 45 600lm
- Lamp Finish: Opal
- Brand: Eurolux
- Warranty: Yes
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