How to choose CFL Light BulbsLight output is measured in lumens. Because incandescent lamps have for years been the only choice, consumers have become accustomed to buying bulbs not on the basis of their light output, but their wattage. CFL bulbs produce high light output, using less watts. As a result, when shopping for CFLs the most important measure to look for is lumens, not watts. A simple rule of thumb when shopping:If you want to replace a 100 watt bulb with a comparable light output CFL, divide the incandescent wattage rating by 4. That will yield a number fairly close to the wattage size you need in a CFL. For example, a 100 watt incandescent light bulb is comparable to a 25 watt CFL light bulb . If you buy a 25 watt CFL light bulb , pick the highest lumens. Once you’ve got the right size bulb, make sure its designed for indoor and outdoor use. Making the most of your lightingBesides the advent of new lighting technology like CFLs, control devices used appropriately can pay off in lower energy bills. Rule one remains the sameIf it’s not in use, turn it off. Even if you just step out for a moment, turn it off. Helpful control devices such as Occupancy sensorsOccupancy sensors: By sensing heat or motion, these switches automatically turn on and off the lights depending on activity levels. Motion sensing controls for outdoor lights are available at any hardware store.
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