Can you use New 100 watt bulbs that use 72 watts of power in a 75 watt fixture?

Answer 1

NEVER! NEVER! NEVER! The current draw from a 100W light greatly exceeds the design limits built into the 60W fixture. The end result would be a fire.

You can use florescent light bulbs to get more light with less amperage. You get 100 watts equivalent lighting for 23 watts and will not create a fire hazard.

Answer 2

You must first find out if the fixture is safe with a 100w bulb. Makers of lighting fixtures usually specify the maximum wattage of a fixture. (See writing which is usually printed on a label, or on the fixture itself, near where the bulb is inserted.) If the fixture is rated for 60w, to be safe you need a new fixture installed that is rated 100w because the 60w fixture is very likely to overheat if you put in a conventional 100w incandescent bulb. Another solution: you could use one of the latest types of Compact Fluorescent Lamp. They use only about 1/5 (a fifth) of the power taken by an incandescent lamp. So you could have the equivalent of 100 watts of light and it would only cost you 20 watts worth of electricity! Also, a CFL should last much longer than an incandescent lamp. Five years' life is not at all unusual, compared to one year or so for an incandescent. One problem might be if you cannot find a CFL that will easily fit your present fixture. In that case why not change the fixture? Its cost might even be more than covered by the savings in electricity you might make using a CFL for the next five years and onwards, especially if you can install the new fixture yourself. Having said all that, the actual money savings you might make using a CFL will depend on the amount of time the lamp is likely to be used each day. However, now that the prices of CFLs are rapidly coming down because of the increased public demand for them - so more manufacturers are making them - the actual average daily usage time needed to save money using a CFL is becoming less and less nowadays... As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

Answer 3

If it uses 72 watts of power it's a 72 watt bulb, although a halogen bulb might also be marked 100 watts to indicate its brightness compared to an ordinary incandescent bulb. It would be all right in a 75 watt fixture.

Answer 4

yes you can use lower wattage bulbs in a 100w rated light fixture.