If the bulb is operated for an average of six hours per day, then over the course of a year it will use approximately (6 X 365 X 60) = 131 kilowatts of electricity. At an average cost of 12 cents per kilowatt-hour, the 60-watt incandescent bulb will cost approximately $17 per year to operate.
Similarly, how much watt LED bulb is required for a room?
For the average living room of 250 square feet, you'll need 5,000 lumens as your primary light source (20 lumens x 250 square feet), equivalent to about five 100 watt incandescent light bulbs, five 23 watt CFLs, or eight 10 watt LED light bulbs.
How many watts is the average light bulb?
CFLs use 1/3rd to 1/5th the electrical power of incandescent lighting and can last 8 to 15 times longer. An average CFL bulb which provides 800 lumens will use only 13 to 15 watts compared to a similar incandescent bulb which uses 60 watts.
What type of light bulb is closest to natural light?
Halogen: Theese give off a bright, white light, similar to natural daylight. Great for task lighting. They also use 10-20% less energy than an incandescent bulb.