Incandescent lamp wattage. The lamp guide watt conversion tableshow to convert incandescent watts led sciencinggo green with this light bulb conversion guidelumens to watts cfl incandescent led everything. Alternatively a cell phone camera may be used to determine if the existing ballasts are magnetic or electronic. Wattage and brightness comparison incandescent vs cfl vs led the task of choosing a replacement bulb only by its wattage is no longer an easy task as was in the past when incandescent bulbs were the only option and everyone understood the bulb brightness by its wattage like 60 watt 80 watt or 100 watt. For example a 3w led is equivalent in output to a 45 w incandescent.
Cfl compact fluorescent lamp light bulbs were the first real energy efficient alternative to incandescent and halogen bulbs using much less energy and lasting for much longer. Light loss is due to filament evaporation and bulb blackening. A 75 watt energy use on an incandescent light would only need to be 11 to 15 watts on a fluorescent light. Read the package to choose desired illumination level.
Typical lighting wattages the following is a basic guide to typical lighting equipment wattages. An incandescent lamp that gives 93 or less of its initial light output at 75 of its rated life is regarded as unsatisfactory when tested according to iec publication 60064. Existing fluorescent fixture ballast type can be determined by looking at the ballast. Lumens are the new unit of measurement for light bulbs.
Essentially if both fluorescent and incandescent bulbs produce the same amount of light their respective wattages will be equivalent showing how much energy it takes to make the same amount of light. Actual wattage for fixtures that are replaced will depend upon the lamps and ballasts used. Led light bulbs take energy efficiency to another level using around 40 less energy than cfl equivalents. Convert choosing the right color led find the equivalent wattage of cfl led and halogen bulbs with this cheat sheet convert the endless search how to a light bulb.
For example a 3w led is equivalent in output to a 45 w incandescent. For lumens in 500 to 600 range it takes about 55 watts for an incandescent bulb to operate while it takes only 10 watts for a fluorescent light.