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1534 posts

Uber Geek


# 198695 19-Jul-2016 13:26
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So I have a solar security light that has 24 surface mount LED's on it. It operates on a PIR and is only on for a small amount of time before it turns off. It seems to get plenty of juice from the solar panel even in winter (ie its never dim).


As far as I can tell the LED's are wired in series.


Now I just happen to have a second one of these that is damaged but the LED panel is fine (pet vs light; pet = 1 & light = 0).


Anyway, my question is if I wire the second panel into the working light in parallel, is the only downside increased battery drain?


I'm a bit rusty on my old DC electrics...

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22510 posts

Uber Geek


  # 1595023 19-Jul-2016 13:30
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Will depend where the current is limited. If in the lamp then it may overload whatever boost converter is in the sensor. If in the sensor then they will get half the current each approximately and be dimmer.

You sure they are in series tho? Usually it's an array of them since 24 LEDs would be around 100v in series.


1534 posts

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  # 1595036 19-Jul-2016 13:55
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richms: You sure they are in series tho? Usually it's an array of them since 24 LEDs would be around 100v in series.


Mmmm good point, I'll double check.

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