Omari Gates
Changing a lightbulb is one of the only legal DIY electrical jobs in Australia. While it may seem straightforward, it's important to follow safety precautions to avoid injury or damage. Before starting, gather the necessary supplies, such as a sturdy stepladder or chair, work gloves, a headlamp or flashlight, and the appropriate replacement bulb. Make sure to turn off the power at the switchboard or wall socket, and allow the bulb to cool if it was recently on. To remove the bulb, gently rotate it anticlockwise if it's a screw cap or push and twist anticlockwise if it's a bayonet cap.
| Characteristics | Values |
|---|---|
| Safety precautions | Wear protective gloves, use a tool to reach into the fixture, ensure the fixture is powered off or unplugged before changing the bulb, check the wattage on the fixture to make sure you're using the right bulb |
| Light bulb types | Screw cap, bayonet cap, Edison screw, bayonet mount, incandescent, LED, halogen, CFL |
| Light bulb features | Wattage, shape, size, colour output, brightness |
| Light fixture access | Use a ladder, stool, stepladder, or a steady chair |
| Bulb removal | Gently rotate anticlockwise if it's a screw cap, or push upwards and twist anticlockwise until it clicks out of the socket if it's a bayonet cap |
| Bulb disposal | Wrap the bulb in something before throwing it away to protect the bag and your hand |
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What You'll Learn
Safety precautions
Safety should be the top priority when changing a lightbulb. Here are some precautions to take:
Avoid Electric Shocks
Before touching a lightbulb, ensure the power source is turned off. If it's a plug-in lamp, unplug it from the wall. If it's a fixed light, turn off the lighting circuits at the switchboard. If you're unsure, turn off the main switch to disconnect the power to the entire property. It's also a good idea to let the bulb cool down before handling it, as it may be hot from emitting light.
Prevent Falls
Use a sturdy stepladder, step stool, or a steady and secure chair to reach the light fixture safely. Avoid standing on your tiptoes or using unstable furniture that could cause you to lose your balance. Ensure that any ladder or step stool is placed on level ground before climbing.
Handle with Care
Lightbulbs, especially glass ones, are fragile and can break easily. When removing a bulb, be gentle and avoid using your fingers, especially if it's rusted or stuck. Instead, use needle-nose pliers to carefully remove the base of the bulb from the socket. When disposing of old bulbs, wrap them up before throwing them away to protect yourself and the trash bag from broken glass.
Check Compatibility
Before installing a new bulb, check the wattage, shape, and size to ensure it matches the recommended specifications for your light fixture. Using a higher-wattage bulb can lead to overheating, and choosing the wrong shape or size may result in an improper fit. Also, ensure you're using the appropriate type of bulb for the fixture, such as incandescent, LED, or halogen.
Inspect the Fixture
Before removing or installing a bulb, carefully inspect the electrical fixture. Look for any loose sockets, damaged wires, or signs of wear and tear. If you notice any issues, it's best to contact a licensed electrician to service the fixture before installing a new bulb.
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Choosing a replacement bulb
Next, examine the base of the old bulb to identify its style. The two most common types in Australia are the bayonet cap and the screw cap, specifically the Edison screw. Other styles include the bayonet mount and GU10. Knowing the style of the bulb will dictate how to remove and replace the bulb correctly.
Finally, consider the shape and size of the bulb. Choosing the wrong dimensions could result in the bulb not fitting correctly. Once you have the correct type, wattage, style, shape, and size, you can proceed to safely replace the light bulb. Remember to turn off the power and wear protective gloves to avoid any injury or damage.
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Removing the old bulb
Before removing the old bulb, make sure you have the correct replacement bulb, whether incandescent, LED, or halogen. Check that the wattage, shape, and size are correct. Changing to a higher-wattage incandescent bulb can lead to overheating, and choosing the wrong shape or size could result in the bulb not fitting correctly.
Next, turn off the power at the switchboard, lamp, or wall socket. Use a ladder or safety step if needed and wear protective gloves. If the light bulb is on the ceiling, use a stool, step ladder, or secure chair to avoid straining and the risk of breaking the bulb, cutting yourself, or damaging the fixture. Make sure you are in a comfortable and safe position before attempting to remove the bulb.
Now, remove any screws or clips holding glass or plastic domes over the bulb. Pay close attention to the condition of the electrical fixture as you do this. Look for any loose sockets, damaged wires, or signs of wear and tear. If you notice any issues, it is best to contact a licensed electrician to service the fixture before installing a new bulb.
Finally, remove the existing bulb. If it is a screw cap, gently rotate it anticlockwise until it comes free. If it has been in place for a long time and the screw portion has rusted, the bulb section may come off, leaving the base stuck in the socket. In this case, use a pair of needle-nose pliers to carefully remove the base. Do not use your fingers. If it is a bayonet cap, push the bulb upwards and then twist it anticlockwise until it clicks out of the socket.
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Installing the new bulb
Next, carefully screw the new bulb into place by twisting it gently in a clockwise direction. Avoid pushing or turning too hard, as this may cause the new bulb to break. Once the new bulb is in place, return the cover to the light fitting, if there is one, and restore power to the light.
If the light does not work after switching it on, contact a licensed electrician. Light bulbs are fragile, so be cautious when disposing of old bulbs. Wrap the bulb before throwing it away to protect the bin bag and your hands.
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Disposing of the old bulb
Light bulbs are fragile and can break easily, so it is important to be careful when disposing of them. Wrap the bulb in newspaper or other packaging material before putting it in your waste bin to protect the bin liner and your hands. Old-style incandescent light globes can be safely disposed of in your normal rubbish. However, it is becoming easier to recycle these bulbs, and many council offices, waste depots, and IKEA stores accept them.
Fluorescent lighting contains small amounts of mercury, which is an environmental and health hazard, so it should not be disposed of in household rubbish. Some councils in New South Wales, Tasmania, and Victoria have toxic waste programs that accept fluorescent lights for recycling. Victoria, for example, has banned the dumping of all e-waste (including lighting waste) in landfills. If your organisation generates commercial quantities of lighting waste, you can contact a specialist company to arrange for safe recycling.
If a bulb breaks, it can cause injury. There are many ways to remove a broken bulb, but most involve some form of risk, so it is best to contact a licensed electrician to deal with it.
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Frequently asked questions
Always make sure the fixture is powered off or unplugged before changing the bulb. Use a tool to reach into the fixture, never use your fingers. Wear protective gloves to avoid cuts from broken glass.
You will need a sturdy stepladder or a steady chair to provide safe access to the light fixture. Have the appropriate replacement bulbs ready, ensuring they are the correct wattage, shape, and size.
If it is a screw cap bulb, gently rotate it anticlockwise until it comes free. If it is a bayonet cap bulb, push it upwards and twist anticlockwise until it clicks out of the socket.
Light bulbs are fragile and can easily break. Instead of throwing it directly into the bin, wrap it up to protect the bin bag and your hand from broken glass.
