Metal halide bulb question?
alright so hears the deal. i got a 100 watt metal halide bulb..now i jsut found out it doesnt work in a lamp..so i need a ballest..now i dont understand what a ballest is..it looks to me like a box..how does that make a light bulb work..i have no idea..please help!!
Metal halide bulbs are a type of arc lamp, they need a large voltage (several thousand volts) in order to start up. Once running the voltage needed to keep the lamp on is a lot lower.
The ballast is a simple electrical circuit which generates this large voltage when the lamp is first switched on.
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