What is a ballast used for?

Answer Ballasts are used in fluorescent lighting. The primary function of a ballast is to control the amount of electrical current sent to the light so it can be turned on. Without a ballast to control th... Read More »

Top Q&A For: What is a ballast used for

What is a HID ballast?

A HID (High Intensity Discharge) lamp ballast is a kind of lamp that produces electrical light by using an arc placed between electrodes made out of tungsten and kept in a transparent fused quartz ... Read More »

What does Class P ballast mean?

A class P ballast is regulates the power, voltage, and current during startup and function of a fluorescent bulb. Class P means that it has a nationally acceptable safety rating for regulating temp... Read More »

How to Test an HID Ballast?

High Intensity Discharge (HID) lights are a popular choice for car headlights. These bulbs produce a bright light that is perfect for nighttime vision. HID bulbs are connected to ballasts that cont... Read More »

Can you change a ballast?

You can replace the ballast in a conventional-style fluorescent light fixture, which has replaceable tubes in typical lengths of 6 in. to 8 ft. Sometimes it isn't just a burned out bulb, and a do-i... Read More »