Pick the Right Bulb

To pick the right bulb for your use, replace your used incandescent bulb with a CFL of equivalent wattage. CFL manufacturers generally show that information on the packaging with wording such as "Equivalent to a 60-watt bulb." Or, you can use the handy chart below:

Incandescent Bulb Wattage	25W	40W	60W	100W	150W
Fluorescent Bulb Wattage	7-9W	11W	15-16W	28W	38-39W

You may also want to measure the widest portion and the complete height (including the base or pin) of your existing bulb. Compare that to the size CFL you think you need. Pay special attention to the measurement of the narrowest portion of your existing fixture, such as the narrow portion of the harp in a table lamp.