Turn off the power. The safest way to do it is by switching the main power button to ‘off’ on your fuse box.
Make sure you can get to the bulb safely.
Let the bulb cool before touching it.
Remove bulb – Take the bulb out of the socket. The way you do this will depend on whether your bulb has a bayonet mount or a screw fitting.
Bayonet mount (two prongs) – Hold the bulb firmly but gently, push upwards and turn anticlockwise until it is released from the socket
Screw fitting – Keep gently twisting anticlockwise until the bulb comes loose from the socket.
Replace the bulb – Put a replacement bulb lightly but firmly into the socket. Depending on the type, turn it clockwise until it locks into place or keep gently twisting clockwise until it won’t go any further.
Restore power – Turn the power back on again and switch on the light.
Dispose of old bulb – Get rid of the bulb safely. Use the packaging from the new bulb to wrap the old one up before getting rid of it.