What is the output voltage of an electronic ballast?
Newer fluorescent ballasts are usually rated for both 120 volts and 277 volts. Some are rated for only 120 volts, others for only 277 volts (used in commercial environments). CFLs for the home have a built-in ballast at the base of the bulb.
How much power does an electronic ballast use?
Electronic Ballasts On a typical fixture with two 4 foot 40 watt T-12 fluorescent lamps, the ballast consumes about 13 to 16 watts of electricity. Thus the total consumption of the two lamps plus the ballast is about 93 to 96 watts. The most efficient ballasts are electronic, or high-frequency ballasts.
What are the two type of electronic ballast?
electronic ballasts. There are two lamp families that work with a ballast: fluorescent and HID.
Does a ballast use electricity if no bulbs are present?
No, unlike LEDs, the fluorescent bulb itself (or rather the tube) can not use power when it burns out, however, the ballasts may use a trace of energy whether or not there is a bulb installed.
How does a ballast limit current?
The ballast adds positive impedance (AC resistance) to the circuit to counteract the negative resistance of the tube, limiting the current.
How many amps does a ballast draw?
Generally, most standard outlets have a capacity of 15 amps. When you plug a 1000 watt ballast in your 110 volts power supply, it draws nine amps.
What is the disadvantage of electronic ballast?
Electronic ballasts are more efficient and more compact in size and weight. They also provide the ability for continuous power adjustment at different settings. A disadvantage is that power fluctuations may cause a failure but this can be offset by adding a buffer capacitor. Operation of the ballasts generate heat.
Will a bad ballast still have power?
If they are electronic ballasts, they’re like power supplies, so even without tubes installed they will be powered. However if there was smoke or “fried electronics” smell it is possible that some wires have melted insulation so I’d really recommend opening up the fixtures to check.
What does an electronic ballast do?
Electronic Ballast is a device which controls the starting voltage and the operating currents of lighting devices built on the principle of electrical gas discharge. It refers to that part of the circuit which limits the flow of current through the lighting device and may vary from being a single resistor to a bigger,…
How do I WIRE an electronic ballast?
Individual ballast wires each connect to a lampholder on one side of each tube. The common wire(s) connect to all of the lampholders on the other side of the tubes.
How does an electronic 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. A basic inductor consists of a coil of wire in a circuit, which may be wound around a piece of metal.
How do electronic ballasts work?
Electronic ballast is a device that converts power frequency to very high frequency to initialize gas discharge process in Fluorescent Lamp by controlling voltage across the lamp and current through the lamp.