Replacing rear indicators with LEDs

TriumPhil said:

Do they make such bulbs that will fit in the OEM housing. If so, do I understand correctly that the LED bul(s) would neither require a relay or resistors to work properly?

As you may have surmised, my brain turns into mush when it comes to matters electric.

LEDs would have better conspicuity all day long/in all conditions than standard incandescent filament bulbs, wouldn't they?

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R-III-R Turbo said:

INDICATOR LED BULB IN-LINE CANBUS LOAD RESISTOR WARNING CANCELLERS WIRE

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Q Why do I need load resistors with LED bulbs
A Unlike conventional bulbs LED bulbs have a lower resistance and the canbus system on your vehicle can be fooled into thinking there is a bulb failure. Fitting in-line load resistors will stop this problem.

Q Why are my LED indicator bulbs flashing too fast
A Unlike conventional bulbs LED bulbs have less resistance and the canbus system on your vehicle can be fooled into thinking there is a bulb failure. Fitting in-line load resistors will make the LED bubs flash at the same speed as standard bulbs.

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FunkSoulBro said:

.. Hope this is the right one.

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DEcosse said:

Don't care what that says, they are just as wrong as you

Since you are holding them up as an authoritative reference, just to help illustrate how clueless that seller is:



Completely Wrong.
LED bulbs have HIGHER resistance than incandescent - the LEDs draw LESS current than an incandescent

Maybe you can explain how an in-line resistor will satisfy the requirement of equaling the original load?
1. What is the current supplied to two 10W incandescent bulbs? (i.e. one side, front & rear)
2. What is the current supplied to two LED bulbs?
3. What is the total current supplied to two LEDs with a resistor (8 ohms) in parallel? (hint - this answer will be the ~ same as #1)
4. What is the total current supplied to an LED with a resistor in series (in-line) - you can pick ANY resistor you want for this! (Hint - the current for 4 will be even LESS than the current for 2, regardless of what value you pick)

Me EE - you?

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DEcosse said:

Yes, that should do it - same pin convention as the OEM.

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R-III-R Turbo said:

dude put down the textbook and try it in real life.

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what i will give you, is that they will work better in parallel than series

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FunkSoulBro said:

Installed the new relay. Havent got the LEDs yet (waiting delivery) and the incandescents are blinking as normal. Much better solution to ditch the resistors and best of all its plug n play.
Thanks again for the guidance.

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DEcosse said:

empirically (that means 'trying it so you don't have to look it up) or theoretically.

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