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An emergency ballast is a lighting ballast that has an internal battery. This battery will store enough energy to power the light for a short amount of time. Typically this battery is not designed to last through long power outages. Rather, it is normally used in conjunction with a backup generator. In the event of a power loss, the ballast immediately carries the load of the light, until the generator comes online. Some manufacturer's do not combine the ballast and the battery in the same metal can; they use 2 separate cans. The battery part in many instances does not light all the lamps of the fixture and it may only light the lamps about half brightness. The purpose is only to assist in evacuating the building
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How to connect ballast?
To connect a ballast, first, ensure the power is turned off. Then, match the wiring from the ballast to the wiring in the fixture according to the wiring diagram provided with the ballast. Make sure all connections are secure and insulated properly before restoring power.
Can T8 LED tube light be used with ballast and can ballast be removed and will it work?
A T8 LED tube has to be used with a ballast to bring the correct voltage to the tube for it to operate correctly. Removing the ballast from the circuit will prevent the tube from operating.
If 227v connected to 120v ballast what happens?
If a 227V power source is connected to a 120V ballast, the ballast may get damaged due to the excessive voltage. It is important to always ensure that the voltage input matches the rated voltage of the ballast to prevent such issues.
What size ballast do you use for a 4 foot tube?
When the ballast is to be purchased, look at the schematic that is on the label of the ballast. There it will tell you which ballast is good for which lamps and also let you know what length of tube the ballast is good for. Most of the new electronic ballasts allow for multiple connections of different size lamps.
Can you use a 70 watt metal halide lamp in a 150 watt ballast?
No, it is not recommended to use a 70 watt metal halide lamp with a 150 watt ballast. The lamp and ballast wattage should match to ensure proper operation and to prevent damage to the lamp or ballast. It is best to use a compatible lamp and ballast with matching wattages.
