When replacing a bulb in a dome fixture, look for the screw on the side where the dome meets the ceiling. Check the base of the dome where it joins to the fan body for a ceiling fan. Turn the screw counterclockwise to release it while holding the dome in place. Then pull the cover off the socket to access the screws inside it.
Domes have two parts: the globe and the casing. The casing usually has an aluminum or steel frame with fiberglass insulation attached to it. The glass part is colored clear or tinted dark green or blue. It contains the lamp inside it. The globe is a ball made of glass or plastic that fits into the bottom of the casing. As the lamp heats up, it melts the tip of the globe, allowing electricity to be transmitted to it from the fixture wire without burning anyone. When the bulb burns out, it can be replaced easily. Most domes use CRI (Color Rendering Index) 80 or 90 watt equivalent lamps. These types of bulbs are available at home improvement stores. There are also combination globes that include both incandescent and fluorescent sockets inside them. You can still buy replacement bulbs for these fixtures although they are not as common as they used to be.
If the casing is made of metal, then you will need a wrench to turn the screw.
Remove the complete fixture and remove any electrical tape that may have been located on the wires within. Place your new fixture on the base where the previous one was. Screw the new fixture in place and replace the bulb in the bulb cover. If the bulb cover is damaged, it should be replaced. The old bulb can be put in a plastic bag or placed in a recycling bin.
It's recommended to use high-quality replacement bulbs because cheap ones will break if they are exposed to heat or moisture. Incandescent lamps are being phased out by manufacturers who claim they are more energy-efficient, but they also consume more energy when they first turn on. Compact fluorescent lamps (CFLs) use less electricity than incandescents and don't contain mercury, but they can still be expensive to buy and install. LED lights are becoming more affordable and have the potential to be more energy-efficient than either type of lamp mentioned above.
Lighting is one of those things that seems like a simple task that really isn't. There are different types of bulbs that serve different purposes. If you're replacing a string of outdoor lighting with new fixtures, try to select models that are identical to the old ones in terms of size and shape. This will ensure a proper fit with no gaps where light won't reach.
The type of bulb you choose depends on how often you need to replace it and what kind of lighting you want to use afterward.
Gently twist the bulb counterclockwise to free it from its socket. Continue to twirl the bulb until it comes loose in your palm. Remove the bulb. Insert the stem of the new bulb into the socket of the reading lamp. Twist the base of the new bulb slowly to secure it into place.
Lightly but firmly insert a replacement bulb into the socket. Depending on the kind, either spin it clockwise until it locks into place or slowly twist it clockwise until it won't go any further. Turn the power back on and turn on the light after the bulb is in place. This ensures that no air remains trapped in the casing of the old lamp which could cause the new one to explode when electricity is applied.
Changing an incandescent light bulb is easy if you follow these steps: First remove the old bulb by turning it counter-clockwise until it clicks into place. Then lift off the cover hiding the wire connections. Finally, pull out the old filament assembly and put in the new one by following the instructions below for each type of bulb.
Now your light will be brighter with less energy consumption. It's so simple!
Turn off the electricity. This may seem like a no-brainer, but it's one of two potentially hazardous processes in changing any light bulb, so we should take a moment to go over it. Also, if the bulb was turned on only a second ago, let it to cool. Otherwise, it could burn someone.
Remove the old bulb and try not to break it. There are three ways to do this: cut the wire, strip the wire, or pull the filament out. Most bulbs can be replaced without cutting wires, but make sure you don't leave any behind when you change them. If you use a strip cutter or fuse remover, put these items away safely after use.
Insert the new lamp into its socket. Pay attention to which way the threads are facing when you insert it to prevent turning it upside down. If it is turned right side up, you're done!
If it isn't turned right side up, then you have two choices: rotate it yourself using the instructions below or call a professional electrician. Don't worry about breaking something during insertion; it's very unlikely given how easy they are to install. It's more likely that you will break a blood vessel in your eye while trying to reach for the bulb.
How does your eye feel? Will it blur your vision? If so, seek medical help immediately.