Fluorescent Light Transformer Output Voltage

Some are rated for only 120 volts others for only 277 volts used in commercial environments.

Fluorescent light transformer output voltage.

Fluorescent lamps use a ballast which transforms line voltage to a voltage to start up and operate the lamp s. Using a 555 timer as main parts. The lamps are on the output of a transformer ballast the input of the transformer being the line voltage. This is 4w 12v fluorescent lamp driver circuit.

Cfls for the home have a built in ballast at the base of the bulb. Newer fluorescent ballasts are usually rated for both 120 volts and 277 volts. How many volts needed. The ballast provides enough voltage to start the fluorescent bulbs and once they are started it quickly lowers the current to produce just enough electricity to produce a steady light source.

Commercial cfls use a separate ballast. When it uses 12v battery has consumption current about 300 ma. The advantage of this circuit has a lot of brightness using less energy. However once this takes place a much lower voltage usually under 100 v for tubes under 30 watts 100 to 175 volts for 30 watts or more is needed to maintain it 100 175 v.

Fluorescent tube and switching ballasts. You may use a 12v adapter or 12v battery. The amount of illumination in the fluorescent bulb is controlled by a ballast that is connected to the fixture.