The latest comparisons for energy efficiency and energy costs based on a 1200 hour incandescent lamp at 60 watts are;Light Emitting Diodes (LED) - 329 kWh/year at an operating cost of $32.85 per year.
Incandescent Light Bulbs - 3285 kWh/year at an operating cost of $328.59 per year.
Compact Fluorescents (CFLs) - 767 kWh/year at an operating cost of $76.65 per year.
Yes, the wattage is just the power consumption. A 30 watt Fluorescent will give more or less the same light as a incandescent bulb or 60 watts, which is the limit for your fixture for incandescent bulbs.
Compact fluorescent lights are used in place of incandescent lights, but use one-fifth or one-third of the electrical power. They also last about ten times longer, making them very efficient for lighting rooms.
An incandescent bulb differs from a fluorescent based on how it produces light. "Incandescent" means producing light through heat, this is essentially how an incandescent bulb lights. As current travels to the tungsten filament, the filament heats and lights up as the tungsten filament begins to deteriorate and eventually fail. Fluorescent bulbs produce light when current excites gasses inside the glass envelope. As the gasses get excited they emit photons. Interestingly, the light produced by a fluorescent bulb does not fall along the visible spectrum until it passes through the white, phosphor coating on the inside of the bulb. And there you have it.
It depends. If you have a compact fluorescent bulb, it is about the same difficulty level as installing an incandescent bulb. If however you are installing a 4 foot long fluorescent tube, it may be considered a bit more difficult because there are 2 pins on each end of the tube that have to line up on each end of the light fixture, thus it would require a bit more effort and coordination. Once you line the end pins up, you push the tube into the slot until it is fully seated, then you give it a quarter turn to lock it in place.
Yes, many kinds of light bulbs should be recycled. Traditional fluorescent bulbs (the long tube bulbs) and compact fluorescent bulbs contain mercury and should be recycled. Many towns or cities have programs to recycle these bulbs. Or, you can return the used bulbs to the place you bought it and they will recycle it for you (for example, Home Depot has a program for recycling bulbs). Traditional incandescent bulbs do not need to be recycled.
The first viable & practical fluorescent light was sold in 1938. The fluorescent became common place in the 1940s and was used in medicine cabinet lighting.
Depends where you are planning to place the resistor.
Consumer protection is in place to protect the purchaser from getting false information. There are laws in place so the consumer has the right to get information about their purchases and not be cheated.
Place your meter on both ends, same prong.
Any form of electrical lighting will produce both light and heat, and with inefficient, incandescent lighting you get a higher proportion of heat rather than light, as compared to other forms of lighting such as fluorescent, or the most efficient, which is LED, which turns almost all of the electric power that it consumes into light, and very little into heat.
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no because it would blow up because the socket would draw 13 watt not 9 watt