Strange issue with light fitting.

ben g

Lifer
 Essex
I ordered a new light fitting for outside my front door and fitted it today.

I also fitted some dusk-dawn 5w led bulbs, as my missus always forgets to turn the light switch off in the morning :lol:

Fitted it without issue, put the bulbs in and waited for it to get dark.

Now it's dark and I went and had a look, to be greeted with only one bulb lit up, like so:

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I've swapped the bulbs round and there's still the same problem. I removed the top bulb and the bottom one lit up. So I know the bulb works.

I have chucked in a couple of normal led bulbs and they're both working fine, so it's specifically something to do with using 2 dusk dawn bulbs at the same time.

Could one of the bulbs be interfering with the other bulbs dusk dawn sensor?

We had an up down lighter fitted previous to this one and had no issues at all with the dusk dawn bulbs, so it's odd that they're not working with this particular fitting.
 
i sussed it.. just checking here.. is this a windup ?
if not.. they are light sensing.YES ? .- so the moment one light senses dark, it lightS up, which immediately cancels out the other one as its not dark any more - DOH !
 
road warrior said:
i sussed it.. just checking here.. is this a windup ?
if not.. they are light sensing.YES ? .- so the moment one light senses dark, it lightS up, which immediately cancels out the other one as its not dark any more - DOH !

I did think that, but when I put a normal led bulb in one part of the fitting, the dusk dawn bulb in the other end still lights up, so that would possibly rule out that theory.

I'm not as stupid as I look :P

I asked my dad about it, as he knows everything about everything. He said the best thing to do is to wire in a dusk to dawn sensor and keep the normal led bulbs fitted. That way I don't need to worry about the dusk to dawn bulbs.
 
Can you put something between the 2 bulbs to stop light from 1 going to the other.
This would possibly rule out 1 bulb stopping the other coming on
 
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