For lighting up a city you need 120 volts in the USA and 230 volts in Europe. It's just the usual voltage the light bulbs are needing.
It is not the Volts that will start a fire it is the current drown that will start a fire.
Depends what type of light bulb, look on the bulb it should be marked with the voltage rating.
it varys from light bulb to light bulb.
The correct voltage should be printed on the light bulb.
15.
You generally need the same number of volts for a given amount of light (lumens), regardless of how many hours you use it. They typically measure the amount of energy used by a bulb in "watts", not volts, and you can find a wide range of wattage ratings from milliwatt LEDs to 1000-watt floodlights and on up.
The amps drawn by a 65 watt light bulb should be 65/120 or 0.54167. This fraction of an ampere may be restated as 541.67 milli-amps.
Onions don't have volts.
it varys from light bulb to light bulb.
There are no volts in a light. A light consumes power.
The correct voltage should be printed on the light bulb.
If you divide the watts of the bulb by the supply voltage, that is the current. For example a 60 w bulb on a 240 v supply gives a current of 60/240 which is ¼ amp.
15.
Watts = Volts x Amps x Power Factor. An incandescent light bulb is a resistive load so PF = 1. ANSWER: = 1/2 Amp
amps equals watts divided by volts.
.63 ampere draw @ 7 volts
Look on the light bulb for the voltage and the power in watts. Then divide the watts by the voltage and that gives the amps. Some CFL bulbs also state the current as well as the voltage and power, which is because they can have a poor power factor.
You generally need the same number of volts for a given amount of light (lumens), regardless of how many hours you use it. They typically measure the amount of energy used by a bulb in "watts", not volts, and you can find a wide range of wattage ratings from milliwatt LEDs to 1000-watt floodlights and on up.
Normally that would be however many volts your house runs on. The US/Canada standard is 120 volts at 60 hertz, while most of Europe runs on 240 volts at 50 hertz. Keep in mind though there are all types of light bulbs that run on all voltages from 12 to 240. It should say the voltage on the bulb though? but if you live in North America and you are asking about a normal house-type bulb, your quest will most likely end with 120.