of Home Improvements
*Changing Light Bulbs*
Most light bulbs are very easy to change. With the light turned off simply unscrew the old bulb and screw in the new one. Be careful that the old bulb is not still hot. Bulb should be tightened snug, do not over tighten or the bulb might break when removing it next time.
Fluorescent tube bulbs are replaced by turning the old one until the prongs on the end of the tube slide down out of their receptacles on each of the fixture. The new one is inserted into the receptacles and turned a quarter turn. You will feel the prongs seat in the receptacles.
a Halogen bulb you must wait for the bulb to cool down. They get very
HOT! Use only a properly rated bulb; increasing the voltage and /or wattage
will increase the UV output and internal pressure thus increasing the
risk of rupture. To avoid damaging the glass, do not touch the bulb with
your bare hands. Hold bulb with a cloth or gloves. If you do get fingerprints
on the bulb clean it with alcohol before turning on power to the fixture.
Make sure bulb is sitting in the socket properly and making good electrical
Hold the CFL by its base, rather than the tube, to prevent cracking. Do not allow the lampshade or harp to press against the glass. If a CFL should happen to break, ventilate the room and clean up the area with a disposable rag (do not vacuum). Do not touch the bulb fragments with your hands! CFLs contain a small amount of mercury, which is a required component that gives them the ability to operate. Place the contents in a closed container and properly dispose of it.
Occasionally a bulb will break while being changed. I can usually get the remaining part of the bulb out by grabbing it carefully with a pair needle nose pliers and slowly working it out.
Turn off light switch
Remove fixture from its location and check the wires for any fraying.
Follow instructions for new fixtures mounting hardware.
Pull supply wires and ground wires from outlet box and attach the ground wire to the ground connection on the fixture.
Connect the white wire from the box to the white wire from the fixture with a wire nut. Repeat the same procedure with the black wire. Us UL listed wire connectors suitable for the size, type, and number of conductors.
Carefully tuck all wires back into the outlet box and attach fixture as per instructions.
Check to see what size bulbs are recommended and install the bulbs.
How Light bulbs work:
The filament of an incandescent lamp is simply a resistor. If electrical power is applied, it is converted to heat in the filament. The filament's temperature rises until it gets rid of heat at the same rate that heat is being generated in the filament. Ideally, the filament gets rid of heat only by radiating it away, although a small amount of heat energy is also removed from the filament by thermal conduction.
light bulbs burn out:
Bulbs, what are halogen bulbs?
When changing a halogen bulb, turn off the power and carefully remove the bulb from the fixture. CAUTION: These bulbs operate at high temperatures and with high internal pressure and may unexpectedly shatter.
The heart of
a fluorescent fixture is its ballast, an electrical transformer that steps
up voltage and sends to a pair of lamp holders. Current passes through
the lamp holders and excites a gas in side the fluorescent tube, causing
its phosphorus -coated inner surface to glow. Because they produce far
less heat fluorescent tubes last much longer and consume less power than
conventional incandescent bulbs
CFL's are one
of the easiest ways to save money on your electric bill. Many utilities
even offer rebates just for purchasing them!
CFLs are still more expensive than incandescent bulbs, however considering the life expectancy, and cost of operation, they are considerably cheaper in the long run. A CFL will pay for itself in about 500 hours (4 hours a day for four months). A 15-watt CFL creates the same light as a 60-watt incandescent bulb. Incandescent bulbs create heat while producing light, since CFL's don't waste energy creating heat they are much more energy efficient.
If every American replaced just 1 incandescent bulb with a CFL, enough energy would be saved to light 2.5 million homes for an entire year! Long Island will be incandescent free by 2010 - you will not be able to buy incandescent bulbs after 2010
CFL's contain mercury and should be recycled at your local hazardous waste collector.
Advantages of using LEDs
LEDs produce more light per watt than do incandescent bulbs; this is useful in battery powered or energy-saving devices.
LEDs can emit light of an intended color without the use of color filters that traditional lighting methods require. This is more efficient and can lower initial costs.
The solid package of an LED can be designed to focus its light. Incandescent and fluorescent sources often require an external reflector to collect light and direct it in a usable manner.
When used in applications where dimming is required, LEDs do not change their color tint as the current passing through them is lowered, unlike incandescent lamps, which turn yellow.
LEDs are ideal for use in applications that are subject to frequent on off cycling, unlike fluorescent lamps that burn out more quickly when cycled frequently, or HID lamps that require a long time before restarting.
LEDs shock. Fluorescent and incandescent bulbs are easily broken if dropped on the ground.
LEDs can have a relatively long useful life. One report estimates 35,000 to 50,000 hours of useful life, though time to complete failure may be longer. Fluorescent tubes typically are rated at about 30,000 hours, and incandescent light bulbs at 1,000-2,000 hours
LEDs mostly fail by dimming over time, rather than the abrupt burnout of incandescent bulbs.
LEDs light up
very quickly. A typical red indicator LED will achieve full brightness
in microseconds; LEDs used in communications devices can have even faster
LEDs do not contain mercury while compact fluorescent lamps do.
Life Span &
Energy Consumption Benefits of LED
information based on 103,000,000 households with an average use of 4 hrs
per day per house. Based on gross watts.