0
depending on voltage supplying the bulb, each ballast spicifies on it such rating. many ballasts have better efficiency at higher voltage.
however;
say 175 watt bulb, 120V with 80% efficiency=
(175/120)/.8=1.82amps
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How do street lights produce light?
They produce light by using mercury vapor :D=======================Answer #2:Some (not many) pass electric current through mercury vapor, causing it to glow violet.Some pass electric current through sodium vapor, causing it to glow yellow.Some pass electric current through a thin wire, causing it to heat and glow ...a process is identical to that in every incandescent light bulb in your house.Some burn natural gas.
How much to operate a mercury vapor light?
As with any other light bulb or other appliance, it depends on how many watts you use. Since your electric bill is predicated on how many kilowatt hours you use, an example would be the mercury vapor lamp is 1500 watts, and you use it for six hours a day for 20 days... for each hour you use it, the cost is 1.5kW X whatever the utility charges you X the number of hrs, which in this case is 120hrs.
How many amps does a microwave oven draw?
1100 watts or about ten amps then another 3 to 4 amps for turn table light and fan
How many amps does a two-bulb 32 watt 48-inch fluorescent light draw?
draw 0.104 amps
How many amps does a 65 watt light bulb have at 120 volts?
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.
How many lumens are in a 400 watt mercury vapor light bulb?
A 400 watt Mercury vapor light bulb produces roughly 23,000 lumens. In comparison to a 400 watt metal haloid and or high-pressure sodium, not as good. Metal haliod and high-pressure sodium produces 30,000 lumens.
How do street lights produce light?
They produce light by using mercury vapor :D=======================Answer #2:Some (not many) pass electric current through mercury vapor, causing it to glow violet.Some pass electric current through sodium vapor, causing it to glow yellow.Some pass electric current through a thin wire, causing it to heat and glow ...a process is identical to that in every incandescent light bulb in your house.Some burn natural gas.
How many amps does a microwave draw?
1100 watts or about ten amps then another 3 to 4 amps for turn table light and fan
How much to operate a mercury vapor light?
As with any other light bulb or other appliance, it depends on how many watts you use. Since your electric bill is predicated on how many kilowatt hours you use, an example would be the mercury vapor lamp is 1500 watts, and you use it for six hours a day for 20 days... for each hour you use it, the cost is 1.5kW X whatever the utility charges you X the number of hrs, which in this case is 120hrs.
How many amps does a microwave oven draw?
1100 watts or about ten amps then another 3 to 4 amps for turn table light and fan
Do any car amps light up?
Yes amps from Infinity, Sony and many others have led's built in.
How many watts does a Sodium Vapor light bulb have?
sixty
What Light bulb is most people familiar with?
Most people are familiar with the incandescent light bulb which usually uses a tungsten filament in a vacuum to produce light, and the fluorescent light which uses a gas between two electrodes. There are many other light producing devices such as the currently popular light emitting diode (LED), the sodium vapor light (the yellowish one seen along just about every street and highway), the annoying halogen light, and the mercury vapor light, to mention a few.
How many amps does a two-bulb 32 watt 48-inch fluorescent light draw?
draw 0.104 amps
How many amps does a 65 watt light bulb have at 120 volts?
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.
Does mercury have any gases?
Mercury has a thin atmosphere that is made up of many gases, including: hydrogen, helium, oxygen, calcium, potassium, sodium and water vapor. Mercury is the smallest planet.
How many amps does it takes to light up a led 100 watt?
You need the volts times the amps to equal 100 Watts. On 12 v that is 8.33 amps, or on 200 v is it 0.5 amps.
