Light bulb safety

Lisa Miles over 4 years ago

Hi all

Asking for a friend who needs to change a light bulb in their new home.

The current light bulb in the ceiling pendant is a 40w (28w halogen) bulb but they find it too dim.

Can they safely swap that out for a 60w (42w halogen)?

There's no rating stickers or information of any on the light fitting itself so they don't want to put in a higher rated bulb if it may overheat and cause a fire.

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0 Legh Richardson over 4 years ago

As I remember lighting circuits were designed to take a maximum of 10 times 100W lamps @240V, fuse rating at 5A.

Using 6A MCBs @230V nominal Voltage you could increase the number of lamps on the circuit to 12.

100W tungsten filament lamps = 15-20W LED in light output. You will probably only need 11W LED to provide suitable illumination for a stairwell.These figures are only approximate as the watt rating of LEDs varies somewatt ......

Legh

Just to add we still use B22 bayonet cap fittings
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0 Legh Richardson over 4 years ago

As I remember lighting circuits were designed to take a maximum of 10 times 100W lamps @240V, fuse rating at 5A.

Using 6A MCBs @230V nominal Voltage you could increase the number of lamps on the circuit to 12.

100W tungsten filament lamps = 15-20W LED in light output. You will probably only need 11W LED to provide suitable illumination for a stairwell.These figures are only approximate as the watt rating of LEDs varies somewatt ......

Legh

Just to add we still use B22 bayonet cap fittings
Cancel
Vote Up 0 Vote Down

Cancel

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