LED trailer lights.

Submitted: Wednesday, Sep 18, 2013 at 15:33
ThreadID: 104377 Views:1545 Replies:3 FollowUps:0
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Why are some LED trailer light kits on sale listed as "Multivolt" or 10 to 30 volts and others as either 12 or 24 volts, I thought all LEDs were multivolt ???

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Reply By: Member - LeighW - Wednesday, Sep 18, 2013 at 15:52

Wednesday, Sep 18, 2013 at 15:52
It will depend on the internal electronics. The multivolt will have internal voltage regulator.

The 12V & 24V will either have no regulator or the regulators can only handle 12V or 24V respectively.


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AnswerID: 518368

Reply By: Macca44 - Wednesday, Sep 18, 2013 at 16:14

Wednesday, Sep 18, 2013 at 16:14
I think light are a lot dearer than single volt .
AnswerID: 518370

Reply By: Ross M - Wednesday, Sep 18, 2013 at 18:56

Wednesday, Sep 18, 2013 at 18:56
I have some which are multivolt. They are bright until 14.2 v when they dull off as the changeover electronics select a different LED driver level and then as the voltage rises nearer to 24v they become normal bright for use on 24v.

I was testing them on a variable power supply and it is definitely a stepped switching and application of the supply voltage to suit whatever it is fitted to.

If you have multivolt LEDS and a 12v system and notice the lights are dull then the alternator voltage is operating above the threshold voltage and causing the LED lamps to think it is heading to the 24v level. Proof of an over charging voltage happening.

Ross M
AnswerID: 518382

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