High Pressure Sodium Vapour Lamp Ignitor

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.
High pressure sodium vapour lamp ignitor. Neither mercury vapor nor standard metal halide fixtures need ignitors to strike an arc through the lamp. They emit bright yellow light. Only high pressure sodium and pulse start metal halide fixtures have ignitors. Typically these lights are used on sides of industrial buildings and in some street lamps.
Sodium bulbs can last up to 20 000 hours. Two varieties of such lamps exist. High pressure sodium lights are used for illuminating large outdoor areas. The sodium vapor strikes an arc over 240 c.
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. The lamp turns sky blue as the xenon lights. High pressure sodium lamp hps lamp. I must apologise fo.
They are used for things such as security lighting. These types of lights are commonly found outside. The sodium is mixed with other impurities to create a. A high pressure sodium ballast is responsible for regulating the pressure in light fixtures that use high pressure sodium gas to produce the light.
This evenings experimentation consists of attempting to start a high pressure sodium hps lamp with a microwave oven transformer at 2kv. This pulse starts an arc through the xenon gas. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out.