LED Indicators not flashing

[scottswatches]

I have tried some LED bulbs in the indicators, following upgrading the headlamps and reversing lamps. But the indicators light up, but don't flash. Refitted the filament bulbs and all is okay. Do I need a new relay to run the LED ones, and what spec would that be?

For those interested I fitted Nighteye H4 led headlamp bulbs, and the reversing bulbs are 42mm festoon bulbs and both make a big difference

[JonB]

It'll be because the LED lamps don't draw as much current as filament bulbs. The flasher unit is relying on this current to heat a bi-metallic strip up which opens the contacts. Not enough current and it won't open the contacts, and your indicator stays on.

You need lower current indicator units designed for LED bulbs.

[fatboyoz]

Hi,
Something like this flasher would suffice. 68251BL. It copes with front and rear blinkers, as well as a single connection for our single pilot light.

https://view.publitas.com/bwi/narva-cat ... ge/332-333

Only downside, is it doesn’t have a noise maker. I used a small relay from an electronics store, wired into the circuit, to make an audible click.

Cheers,
Colin.








uote="scottswatches"]I have tried some LED bulbs in the indicators, following upgrading the headlamps and reversing lamps. But the indicators light up, but don't flash. Refitted the filament bulbs and all is okay. Do I need a new relay to run the LED ones, and what spec would that be?

For those interested I fitted Nighteye H4 led headlamp bulbs, and the reversing bulbs are 42mm festoon bulbs and both make a big difference[/quote]

[donselan]

This tutorial from Moss is useful.

https://www.youtube.com/watch?v=auLY6IYeqcI

Don

[1owner69Elan]

Here's another thread that address LED lighting and getting a flasher that works, including the click:

viewtopic.php?f=31&t=39505&p=284347&hilit=+led+flasher#p284347

As shown in the thread:

"Concerning LED compatible flashers. The existing Niles (tall can) and Tridon (smaller plastic) were both replaced by the CEC unit shown. The new CEC unit does require a ground wire but otherwise directly replaces the existing units. There is no need to place resistors in series with the LED's to increase loads to make the flashers work. (Source: Amazon)"

[Frogelan]

From what I understand LED indicators need a special flasher unit that looks like a relay.

This unit functions with the OEM indicators as well.

I can suggest a supplier if you are still stuck.

[David1953]

I got mine from:
https://www.classiccarleds.co.uk/collec ... electronic
Note you need the round one.