24v spotlamps

I've found the lamps I want on the Disco ( blue lens/white halo sidelight 9"
chrome body) but they are truck lights i.e. 24v is it just a case of fitting
12v bulbs or are 24v bulb fittings different ?

You should be fine - just change the bulbs electrics should be identical.

A

"StaffBull" <[email protected]> wrote in message
news:[email protected]...
> I've found the lamps I want on the Disco ( blue lens/white halo sidelight
> 9" chrome body) but they are truck lights i.e. 24v is it just a case of
> fitting 12v bulbs or are 24v bulb fittings different ?
>

> I've found the lamps I want on the Disco ( blue lens/white halo sidelight
9"
> chrome body) but they are truck lights i.e. 24v is it just a case of
fitting
> 12v bulbs or are 24v bulb fittings different ?
>
>
24v and 12v bulb fittings are mostly identical, however you may find that
the halo is lit by LED's, they are being used more and more in lamps these
days. If it is, try it on 12V, it may still work, if it doesn't, then likely
as not it will have been originally designed for 12v, and there is a
resistor in there somewhere, to take the 24v down to 12v. Find the resistor,
remove it and all should be fine.

In article <[email protected]>, SimonJ <[email protected]>
writes
>> I've found the lamps I want on the Disco ( blue lens/white halo sidelight
>9"
>> chrome body) but they are truck lights i.e. 24v is it just a case of
>fitting
>> 12v bulbs or are 24v bulb fittings different ?
>>
>>
>24v and 12v bulb fittings are mostly identical, however you may find that
>the halo is lit by LED's, they are being used more and more in lamps these
>days. If it is, try it on 12V, it may still work, if it doesn't, then likely
>as not it will have been originally designed for 12v, and there is a
>resistor in there somewhere, to take the 24v down to 12v. Find the resistor,
>remove it and all should be fine.

You might need to change the VALUE of the resistor instead.

All LEDs need some sort of dropper resistor to work on 12V as well as
24V. It is also possible that a manufacturer would use the same design
for both 12V and 24V, but change the resistor value between the two
variants. If you just remove the resistor in this case (putting in a
wire link), you'll destroy the LEDs. To check it's safe, you might test
the altered setup at low volts first (say about 2.5V) and slowly
increase the voltage.

If the LEDs are fully bright early on, you will need a resistor for 12V!

Regards,

Simonm.

--
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SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
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SpamTrapSeeSig wrote:

>
> You might need to change the VALUE of the resistor instead.
>
> All LEDs need some sort of dropper resistor to work on 12V as well as
> 24V. It is also possible that a manufacturer would use the same design
> for both 12V and 24V, but change the resistor value between the two
> variants. If you just remove the resistor in this case (putting in a
> wire link), you'll destroy the LEDs. To check it's safe, you might test
> the altered setup at low volts first (say about 2.5V) and slowly
> increase the voltage.

All our LED truck lights are rated for 12 or 24V with no changes
necessary - makes it easy when towing the trailers with different trucks
that may be of either voltage (and saves replacing 6 million bulbs when
someone hooks a 24V truck to a 12V trailer).

--
EMB