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The wattage of a lamp is normally written on it.
If you need to work it out you can measure the voltage across the lamp then measure the current passing through it.
Multiplying the voltage by the number of amps will give you the wattage.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoIt depends on the bulb. A 25 watt bulb uses 25 watts, a 40 watt uses 40 watts, a 60 watt bulb uses 60 watts, a 75 watt bulb uses 75 watts, a 100 watt bulb uses 100 watts, all the way up to a 500 watt bulb. Incandescent bulbs are about to cease to exist, so this answer is only good through the fall.
Wiki User
∙ 10y agoThe power of a lamp is measured in watts, and that amount of power is drawn all the time the lamp is switched on
The amount of energy used and charged for is measured in watt-hours, in other words the power times the time. 1000 watt-hours is also known as 1 kilowatt-hour, or 1 kWh, or 1 Unit.
Wiki User
∙ 12y agoIt depends on the light bulb in it. turn off the lamp and check to see if it says on the bulb
Wiki User
∙ 10y agoThe voltage and power should be marked on every bulb.
Wiki User
∙ 11y agoThe light bulb that is in the lamp is what determines the wattage load. All lamps are rated for a maximum wattage and this rating should not be exceeded due to a possibly heat build up.
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Can I use a higher wattage bulb in a lamp that states 40 watts?
You should not use a higher wattage bulb in a lamp that says 40 watts. The higher wattage could cause the lamp to catch fire due to the excess heat and could cause you serious electrical problems.
How much power does a bulb use?
Bulbs for domestic use are available between 3 watts and 100 watts. Bulbs used in large areas such as theatres and street lighting can be up to 2 kilowatts.AnswerA lamp doesn't 'use' power, it uses energy. Power simply tells you the rate at which it consumes energy. So, you can ask how powerful a lamp is, but you can't ask how much power it uses!
What size of led lamp will be equivalent to 150 Watt halogen lamp?
LEDs and CFLs use about a quarter of a halogen so the answer is 35-40 watts.
How man watts per hour does a 20 watt 12 volt lamp use?
A 20 watt 12 volt lamp will consume 20 watts of power per hour. The wattage represents the amount of power consumed by the lamp, and the 12 volts indicates the voltage at which it operates.
How much watts use air conditioner of half ton?
2200 watts
How many watts does a mini lamp use?
6 watt bulb for mini lamp
How many watts do big bulbs use?
The usual criteria is that the larger the envelope size of the lamp the larger the wattage of the lamp. The terminology of "big bulbs" suggests that the lamp could be in the range of 400 watts.
Can I use a higher wattage bulb in a lamp that states 40 watts?
You should not use a higher wattage bulb in a lamp that says 40 watts. The higher wattage could cause the lamp to catch fire due to the excess heat and could cause you serious electrical problems.
How much power does a bulb use?
Bulbs for domestic use are available between 3 watts and 100 watts. Bulbs used in large areas such as theatres and street lighting can be up to 2 kilowatts.AnswerA lamp doesn't 'use' power, it uses energy. Power simply tells you the rate at which it consumes energy. So, you can ask how powerful a lamp is, but you can't ask how much power it uses!
What wattage bulb does a lava lamp use?
the bulb is usually 30 or 40 watts
How bright is 950 lumens?
220 lumens is equal to a tungsten incandescent light bulb of 15 watts. Halogen lamp 20 watts. Fluorescent lamp 60 watts. LED lamp 60 watts. high pressure sodium vapour lamp 117 watts. Mercury vapour lamp 50 watts or 17.32 candle power
What size of led lamp will be equivalent to 150 Watt halogen lamp?
LEDs and CFLs use about a quarter of a halogen so the answer is 35-40 watts.
How much energy does a projector use?
The power rating is printed on the lamp holder, expressed in watts. As power describes the rate of energy consumption, you need to convert the number of watts into kilowatts (divide by 1000) and multiply this figure by the time for which the lamp is in use (expressed in hours) -this will tell you the number of kilowatt hours of energy used.
How do you figure out how many watts a lamp post produces?
A lamp post produces exactly zero watts, just like my computer produces zero watts. It is a user of electricity, not a producer. The amount of electricity used will depend on the bulb that is used in the lamp post.
How man watts per hour does a 20 watt 12 volt lamp use?
A 20 watt 12 volt lamp will consume 20 watts of power per hour. The wattage represents the amount of power consumed by the lamp, and the 12 volts indicates the voltage at which it operates.
Does a compact fluorescent lamp use 60 watts the same as a standard lamp?
40 watts is 40 watts, that is what you are paying for. However, an incandescent bulb uses the 40 watts to make light and heat. The compact bulbs make more light and less heat for the same wattage. To actually save, choose a lower wattage that will give acceptable light levels.
How many watts are in a one hundred watt lamp?
None, the watts come form the electricity supply and the lamp uses them at a rate of 100 an hour when it is turned on.
