Classic, inexpensive lighting. Contains a wire filament that heats when electrical current passes through causing it to glow and give off light.
Inefficient - Incandescent bulbs convert less than 5% of the energy they use into visible light with the remainder dissipating as heat.
Typical wattage: 60-120 watts / 14.3 lumens per watt
Compact Fluorescent bulbs (CFLs) use one-fifth to one-third the
A CFL has a higher purchase price than an
Not great for extreme temperatures.
Typical wattage: 14 watts / 55.4 lumens per watt
Contains a light emitting diode that is encased in the light bulb. LED lamps have a lifespan and efficiency that is several times better than incandescent bulbs, and significantly better than most CFLs, with some chips able to emit more than 100 lumens per watt.
Typical wattage: 9 watts / 84 lumens per watt
Some ceiling fans may flicker when a full set of compact fluorescent lights are substituted for incandescent bulbs. To fix this, use compact fluorescent bulbs for all but one socket. Use one incandescent bulb for the remaining light. Despite the use of one incandescent, you'll still be saving a significant amount of electricity.
If you are unable to completely upgrade your lighting by replacing each bulb in your home, start with the most frequently used areas in your house and save areas like closets, which only use light for short periods of time, for last.
Simply replacing the typical four 40