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# How many watts are in a security light with a 40 watt bulb?

If it is a 40 Watt bulb it converts energy at the rate of 40 Watts as long as it is switched on.

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## Related Questions

a normal light bulb is about sixty watts. if the light bulb is being fed a certain amount of bolts the watts can increase.

The only power used by a desk light is that used by the bulb. The bulb normally has its power in watts marked on it.

Every person has a different power of light bulb. In my room, I have a 7.5 and a whole bunch of 60s. The number of watts you choose for your light bulb depends on how bright you want your light to be. The higher the number, the brighter it is.

Thomas Edison's first lightbulb was about 20 watts

It should be written on its box, and likely on the bulb (the globe or collar) as well. Not all bulbs have the same power (watts).

That depends on how many volts does that bulb use not watts...

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There is no universal answer, check the specifications on the box the light bulb came from, as a 120 volt light bulb can come in different watt amounts.

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It depends on the light bulb in it. turn off the lamp and check to see if it says on the bulb

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Well that depends on what type of security light bulb it is. Is it for your car, backyard or porch? There are so many out today.

Multiply the current by the voltage: 120 times 0.3, which is 40 watts.

A 100 watt bulb gives about 1500 lumen, so 130 lumen would be a very small one, about 8 watts.

Find out the power of the light in watts, and divide by the voltage it runs at. The answer is the current in amps.

A standard 100 watt incandescent bulb offers the same lumens as a 72 watt incandescent halogen and finally, a compact florescent light (CFL) will use only 23 watts..

144 watts &lt;&lt;&gt;&gt; The formula to find watts is W = A x V. Watts =Amps x Volts.

100 watts. your voltage and amps are what detemines how many watts you can put on the circuit.

The formula you are looking for is I = W/E. Amps = Watts/Volts

On the end of any light bulb except for the fluorescent type there are numbers on the end of light bulb. The number will be followed by the letter w I.e.(65 w). W represents watts-amount of power used. On fluorescent light bulbs the curly cue ones it will be around the base where it screws into the socket.