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 ?
Reply to
StaffBull
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You should be fine - just change the bulbs electrics should be identical.

A
Reply to
Andrew Renshaw

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.
Reply to
SimonJ

In article , SimonJ writes

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.

Reply to
SpamTrapSeeSig

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).

Reply to
EMB

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