Compared to traditional incandescents energy efficient lightbulbs such as halogen incandescents compact fluorescent lamps cfls and light emitting diodes leds have the following advantages.
Compact fluorescent light bulbs wattage comparison.
Compared to a theoretical 100 efficient lamp 680 lm w cfl lamps have lighting efficiency ranges of 7 10 versus 1 5 2 5 for incandescents.
An incandescent light bulb s longevity is 2 000 hours on average.
Similarly if you want to replace your 53w halogen light bulb with a modern led the led will probably use between 9 and 13 watts of energy.
Lumen wattage comparison.
To help give you a little perspective let s compare the wattage between an incandescent light bulb and an led light bulb.
It produces a similar light output of 900 lumens uses 13 watt of electricity and up to 78 less energy than a standard incandescent light bulb.
A fluorescent light bulb s longevity is significantly higher from 6000 to 15000 hours.
We are accustomed to choosing bulbs by how much electricity they use.
The chart below illustrates the amount of brightness in lumens you can expect from different wattages of light bulbs.
Designed to replace fluorescent tube bulbs these led tubes are available in 8 and 16 watts which replace traditional 25 watt and 40 watt t8 t10 t12 fluorescent tubes.
Cfl bulbs have much lower wattage numbers than their incandescent cousins but don t let that fool you.
The luminous efficacy of a typical cfl is 50 70 lumens per watt lm w and that of a typical incandescent lamp is 10 17 lm w.
This compact fluorescent light is ideal for ceiling fans chandeliers table lamps or wall sconces.
Led bulbs require much less wattage than cfl or incandescent light bulbs which is why leds are more energy efficient and longer lasting than their competitors.
For example a correct replacement for a 60w incandescent bulb would be a 15 watt cfl bulb 60 1 4 15.
That s the measure of power the light bulb consumes.
For example a 40 watt incandescent bulb is on the dim side and uses less power while a 100 watt bulb is bright and uses a lot of juice.
Due to a physical process that is utilized in incandescent bulbs they are sensitive to voltage changes.
Can last 3 25 times longer.
A standard a line incandescent bulb uses 50 watts.
Using the chart we can see that if you want to replace a 40w incandescent light bulb with a compact fluorescent cfl you will likely need a 7w cfl.
Because fluorescent lights are often installed in high ceilings in commercial sites there are additional savings because the frequency of changing bulbs is greatly reduced.