Home Electricity

# Does a 150 watt bulb do 150 joules of work?

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###### 2012-05-02 21:51:00

Every second a 150 Watt bulb converts 150 Joules from electricity into heat and light.

The number of Watts tells you how many Joules pass per second.

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## Related Questions

No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.

No, you can not use a 150 watt high pressure sodium bulb with a 70 watt ballast.

You have to pay for the work (enegy) of 150 watt hours. Scroll down to related links and look at "watt-hour - Wikipedia".

A 150-watt light bulb uses energy at the rate of 150 watts, when it's turned on.

A 150 watt incandescent bulb will output around 1500 to 1700 lumen depending on the manufacture.

The work or energy in Joules is the power in watts times the number of second it runs for. So 500 watts for 150 seconds is 75,000 Joules.

Yes. The rating of bulb fixtures is there to discourage people from using bulbs that create too much heat. Obviously, a 75 watt bulb will produce less heat than a 150 watt bulb so it's quite safe to use the smaller bulb. If you overheat a lighting fixture you can cause premature failure and possibly even a fire.

A 150 watt halogen bulb will give off somewhere around 2000 lumens. These lights may give off up to about 2400 lumens.

RE: 250 WATT BULB IN 150 WATT LAMPMIGHT IT BE SAFE USING INTERMITTENTLY AND WITH A COOLING FAN?I'M USING THE LIGHT WITH A GLASS TOP DRAFT TABLE.

Power = Work / time= 600 J / 150 secPower = 4 J/s or 4 Watts (1 Watt = 1 J/s)

If both bulbs fit into the same socket I would presume this to be fine.

The light bulb needs to match the ballast in the fixture.

no you cant if the ballast is for a 150w bulb you have to retro fit the ballast then u can

if this is a Halogen bulb (like a bicycle light) a 15 watt 6 volt will give you between 150-200 Lumens

No, anything over the max wattage becomes a fire hazard and can damage the outlet.

A typical voltage of 120 VAC for a 150 watt bulb it draws about 1.25 amps. That means the filament of the bulb has a resistance of 120 / 1.25 = 96 ohms. If you put 96 ohms across a D-cell the current would be 1.5 / 96 = 15.6 milliamps. Since we know that a bulb designed to work at 120 VAC requires 1.25 amps then the 15.6 milliamps wouldn't be enough to light the bulb.

It would be dangerous to use a bulb of higher wattage than the fixture is rated for, since the extra heat could cause a fire.

Yes it can provided the volotage is right, because for a bulb the volt-amps are equal to the watts - if it is an incandesent bulb. For a fluoresecent bulb the power-factor must be better than 100/150 or 0.67.

The definition of a Watt is 1 Joule/second. Therefore: 150W * 60 Sec = 9000 Joules / minute. In units more applicable home energy use, 9000 Joules/minute equals .0025 Kilowatt Hours (KWh)/minute. On a cost basis, if for example, electricity from a power company costs \$.20 per KWh, the 150W light bulb costs 3 cents per hour to use.

RE: 250 WATT BULB IN 150 WATT LAMPMIGHT IT BE SAFE USING INTERMITTENTLY AND WITH A COOLING FAN?I'M USING THE LIGHT WITH A GLASS TOP DRAFT TABLE.

Check the label on the inside of the lamp shade. There it will tell you the maximum size wattage allowed for that specific fixture. If it isn't a lamp fixture but a porcelain lamp holder then yes you can.

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