Like all ballasts, a magnetic ballast regulates the voltage a fluorescent light receives so that the bulb doesn’t overheat and immediately explode. A magnetic ballast is a type of electrical power regulator used in fluorescent light systems.
How does a magnetic ballast work?
A fluorescent lamp’s ballast works to control this. The simplest sort of ballast, generally referred to as a magnetic ballast, works something like an inductor. … Increasing the current in the loop increases the magnetic field, which applies a voltage opposite the flow of current in the wire.
What is a magnetic ballast?
A magnetic ballast (also called a choke) contains a coil of copper wire. The magnetic field produced by the wire traps most of the current so only the right amount gets through to the fluorescent light. That amount can fluctuate depending on the thickness and length of the copper wire.
What is the purpose of magnetic ballast in fluorescent lamp?
The magnetic ballast uses a magnetic transformer of copper windings around a steel core to convert the input line voltage and current to the voltage and current required to start and operate the fluorescent lamps. Capacitors are added to assist lamp starting and power factor correction.
How long does a magnetic ballast last?
about 75,000 hours
What’s the difference between electronic and magnetic ballast?
What’s the Difference between an Electronic Ballast and a Magnetic Ballast? Electronic ballasts alter the flow of electricity in the light bulb by using a series of induction coils that are separated from one another. In contrast, magnetic ballast uses 1 induction coil and not a series.
Do I need to remove ballast for LED lights?
While LED lamps don’t put the same stress on a ballast that linear fluorescents do, on-going ballast maintenance is still required.
Are digital ballast better than magnetic?
Magnetic ballasts are easily the cheaper option when first buying. However digital ballasts, although pricey to begin with, will run more efficiently, use less energy and in effect help to lower your electricity bills over time.
How can you tell if the ballast is bad?
2. Look for warning signs that the ballast is failing.
- Buzzing. If you hear a strange sound coming from your bulbs or light fixture, like a buzzing or humming noise, that’s often a sign your ballast is going. …
- Dimming or flickering. …
- No lights at all. …
- Changing colors. …
- Swollen casing. …
- Burn marks. …
- Water damage. …
- Leaking oil.
How do I know what ballast I need?
By selecting a ballast with an ideal ballast factor, you can optimize the light output of your fluorescent lighting system and maximize your energy savings. To estimate your total system lumens, multiply the rated lumens of your lamp by the ballast factor. For example, 3200 lumens x 0.77 BF = 2464 total system lumens.
Is ballast and choke same?
A choke is an inductor designed to have a high reactance to a particular frequency when used in a signal-carrying circuit. An electrical ballast (sometimes called control gear) is a device intended to limit the amount of current flowing in an electric circuit.
How long do electronic ballasts last?
about 20 years
How much is a ballast?
A replacement ballast costs about $10-25 depending on capacity and brand. The bite is that an electrician trip charge (which includes 30 or 60 minutes work) is going to be $75-150 probably – for about 5 minutes work on each light fixture.
How do you bypass a ballast?
How to Bypass a Ballast
- Turn off the power. Flipping the light switch to the “off” position does not necessarily end the flow of electricity. …
- Locate your ballast. …
- Cut the hot and neutral wires. …
- Cut the socket lead wires. …
- Remove the ballast. …
- Connect the input wires to the output wires.
Are digital ballasts cheaper to run?
Digital ballasts are waaaaay more efficient. It’ll vary, depending on which units you compare, but typically digital ballasts use 3 – 4% less energy. This doesn’t sound like much but, when you’ve got multiple grow lights on the go, the combined saving really cuts down your energy bills.