At what voltage? Until you tell me the voltage I can't give you an answer.
To find out Amps you need to divide the Watts by the Volts.
At 120V you have 0.4 amps. At 12V you have 4 amps.
Halogen gas is in a Tungsten-Halogen Light Bulb.
A 65 Watt incandescent light bulb should draw 65W/120V = 541.67mA
1 amp
No, 1000VA does not necessarily equal 10 amps. The relationship between VA (volt-amperes) and amps depends on the power factor of the load. For a purely resistive load (like an incandescent light bulb), 1000VA at 120V would be equivalent to approximately 8.3 amps.
You can determine the amps of any power consuming source by dividing the watts by the volts. Example: If the bulb is 60 watts and your volts are 120, then 60/120 = .5 amps. Or you could use an amp probe.
Halogen gas is in a Tungsten-Halogen Light Bulb.
It's 75/120 and the answer is in amps.
A 65 Watt incandescent light bulb should draw 65W/120V = 541.67mA
1 amp
No, 1000VA does not necessarily equal 10 amps. The relationship between VA (volt-amperes) and amps depends on the power factor of the load. For a purely resistive load (like an incandescent light bulb), 1000VA at 120V would be equivalent to approximately 8.3 amps.
It can, but if you're wanting to run a 120v light bulb on DC, you'll need 120v DC to get the rated output. That's a lot of batteries. It's easier, and more sensible, to find a DC rated light bulb, such as an RV bulb.
You can determine the amps of any power consuming source by dividing the watts by the volts. Example: If the bulb is 60 watts and your volts are 120, then 60/120 = .5 amps. Or you could use an amp probe.
Halogen light bulbs are made in a variety of sizes to meet different needs.
Fluorescents are always 3-4 times more efficient than halogens which are a version of incandescent bulb.
Halogen is a gas, so your question doesn't make much sense. If you're asking about a halogen (light) bulb, then the answer is: mainly halogen.
About 0.6 amps for a 12v 21w bulb
The formula you are looking for is I = W/E. Amps = Watts/Volts.