A battery is one example of a source of direct current. A Carling AC rating is followed by “VAC”, for example 125VAC is 125 volts AC. … For example a 125V rating would be read as 125 volts AC and 125 volts DC.

What does VAC mean on a light bulb?

As in 120 Volts Alternating Current. There can be other outlets in a home.

How much current can a switch handle?

The rule states the highest amperage on the switch should work up to 30 volts DC. A switch which is rated at 10A 250VAC; 15A 125VAC; 1/3HP 125-250VAC will perform well at 15 Amps up to 30VDC.

The most common voltage for electric light bulbs is 120 volts (120V). This is the default voltage for most lighting fixtures. However, some lighting fixtures are low voltage. Low voltage lighting is more energy-efficient, but it requires low voltage bulbs to work.