High Pressure Sodium Vapor Lamp

Typically these lights are used on sides of industrial buildings and in some street lamps.

High pressure sodium vapor lamp.

High pressure sodium hps lamps are smaller and contain additional elements such as mercury and produce a dark pink glow when first struck and an intense pinkish orange light when warmed. High pressure sodium vapor hps lights similar to lps lights are a specific type of gas discharge light also known as a high intensity discharge hid or arc light. The first lamp with 400 w 42000 initial lumens and 6000 hour life first came in the market in 1965. Free delivery with 45 order.

The high pressure sodium lamps have excellent colour rendition with a white colour appearance. As the main arc strikes and the gas heats up and increases in pressure the light shifts into the visible range and the high gas pressure causes. Hydro crunch 1000 watt double ended hps high pressure sodium de grow lamp model d911009000 40 25 40 25. The sodium vapor strikes an arc over 240 c.

The principal difference between low and high pressure sodium lights is the operating pressure inside the lamp. A sodium vapor lamp is a gas discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Sunlite 03610 su lu70 med high pressure sodium light bulb 70 watts ed17 med medium base e26 ansi code s55 6000 lumen 24000 life hours clear 2100k 4 3 out of 5 stars 287 13 46 13. The lamp is an improvement over the lps lamp in that it has more acceptable color with the great efficiency of the sodium lamp.

They emit bright yellow light. High pressure sodium lights are used for illuminating large outdoor areas. Low pressure and high pressure low pressure sodium lamps are highly efficient electrical light sources but their yellow light restricts applications to outdoor lighting such as street lamps where they are widely used. Some bulbs also briefly produce a pure to bluish white light.

The sodium is mixed with other impurities to create a. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out. Metal halide bulb mercury vapor lights high pressure sodium hid bulbs e26 hid bulbs sodium vapor ballast home street light. In 1959 the development of polycrystalline alumina pca opened a new path to introduce the high pressure sodium vapor lamp as this material is very rarely affected by high pressure and temperature sodium vapor.

When a mercury vapor lamp is first turned on it will produce a dark blue glow because only a small amount of the mercury is ionized and the gas pressure in the arc tube is very low so much of the light is produced in the ultraviolet mercury bands. We also offer special conversion metal halide bulbs that can be used with fixtures intended for high pressure sodium light bulbs. Two varieties of such lamps exist.