High Pressure Sodium Vapour Lamp Ignitor

High pressure sodium lights are used for illuminating large outdoor areas.

High pressure sodium vapour lamp ignitor.

These types of lights are commonly found outside. The sodium is mixed with other impurities to create a. The lamp turns sky blue as the xenon lights. I must apologise fo.

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. Only high pressure sodium and pulse start metal halide fixtures have ignitors. An ignitor is used when high pressure is necessary to strike an arc through certain materials and get the temperature up very quickly inside it. The sodium vapor strikes an arc over 240 c.

Two varieties of such lamps exist. This evenings experimentation consists of attempting to start a high pressure sodium hps lamp with a microwave oven transformer at 2kv. They are used for things such as security lighting. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out.

They emit bright yellow light. There is an ignitor built into the ballast which sends a pulse of high voltage energy through the arc tube. 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. Typically these lights are used on sides of industrial buildings and in some street lamps.

They are also commonly found in an indoor garden setting. Neither mercury vapor nor standard metal halide fixtures need ignitors to strike an arc through the lamp. A high pressure sodium ballast is responsible for regulating the pressure in light fixtures that use high pressure sodium gas to produce the light.