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Coloured LED "filament" lamps for external use ?

broadgage
I am about to put up my Christmas lights, which this year will include a mains voltage festoon of the traditional type. 40 B22 lamp holders moulders onto tough rubber cable.

I propose to use coloured LED "filament" lamps made by BELL LIGHTING.

These give an impressive light for only 4 watts, and in very striking saturated colours.


On receiving the lamps, I am rather concerned to observe that they are "for indoor use only"

Does anyone know why ? they certainly look waterproof, with a glass bulb directly sealed to the metal cap, and with only 4 watts wont get hot enough for cold rain to shatter the glass.

I am inclined to use them, but don't like ignoring the instructions.

The festoon will  be connected to the mains via an isolating transformer to prevent any electric shock to earth, and an RCD as a second line of defence.

LED lamps
Parents
  • 0
    wiring of any kind  really should not be accessible to anyone likely to do it a deliberate injury - the worklight kind of festoon can have little baskets fitted to the lamp holders where it gets near the ground. Even the centre earthed 110V thing is not mandatory - the idea is a good one  that 55-0-55 cannot deliver a lethal shock, or at least is very unlikely to do so, however  230V and RCD protection is seen as being equivalently safe, as although the current is lethal, the time is limited. That said,  in my personal book nothing beats being out of reach, so even if live parts were exposed it would require a second deliberate act involving  a step ladder or similar to create an actual danger.
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    wiring of any kind  really should not be accessible to anyone likely to do it a deliberate injury - the worklight kind of festoon can have little baskets fitted to the lamp holders where it gets near the ground. Even the centre earthed 110V thing is not mandatory - the idea is a good one  that 55-0-55 cannot deliver a lethal shock, or at least is very unlikely to do so, however  230V and RCD protection is seen as being equivalently safe, as although the current is lethal, the time is limited. That said,  in my personal book nothing beats being out of reach, so even if live parts were exposed it would require a second deliberate act involving  a step ladder or similar to create an actual danger.
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