What ballast does the street lamp use?
You should first look at what is the light source, there are high pressure sodium lamp, low voltage lamp, high-pressure mercury lamp, metal halide lamp, ceramic metal halide lamp, LED lamp and energy-saving lamp, fluorescent lamp, electrodeless lamp and so on, to see what, some others do not need to ballast, general use now most of the high intensity discharge lamp, it is need to use high pressure sodium lamp, ballast or electronic ballast
Using metal halide ballast, it depends on what kind of light, are now "popular" LED lighting, however, there are two main types of our common street lighting, is a metal halide lamp, the other is a metal halide lamp, the latter is a little better, but the price is more durable some high.
Inductance ballast, and generally use sodium lamp. The color of sodium lamp is yellow, not dazzling
