LED bulb swap

[rolesyboy]

I've got some LED type bulbs to upgrade the lights on my Mk1.
Would anybody on here happen to know if the Lucas FL5 (35020) flasher can will get upset/blow up if I fit LED bulbs to my indicators?
I haven't got a clue but trying to avoid an unnecessary meltdown.
Thanks

[timmy201]

You’ll probably need an appropriate flasher unit to match the LED bulbs

These guys should have everything you need
https://www.classiccarleds.co.uk/produc ... 160f&_ss=r

I have a “non-load” flasher unit on mine as I’ve got LED front and regular rear indicator bulbs

[twc641]

LED Flasher Module - LED Bulb Blinking Installing an LED flasher module specifically designed for LED bulbs. This is the easiest method for fixing hyperflashing. These modules are economically priced and are usually simple to install. In most cases, these flasher units are little circular or square boxes with metal prongs sticking out one side that simply plug into where your stock flasher went. Our LED flashers function with both LED and incandescent bulbs, so even if you have LED turn signals in the back and incandescent bulbs still in the front, you can use our LED flasher modules with no problems. Before you order, compare the pin diagram of the stock flasher with the pin diagram of our flashers on our website.

This was at superbrightleds.com
this should answer your question
Cheers
John
I have messaged you earlier this month!

[mk1]

The original flasher unit certainly won't "blow up". It is however highly unlikely that it will flash correctly either. The LED lamps don't craw enough current to make the unit work correctly. The easiest solution, as has already been said, is to use an LED flasher unit, but you can also put resistors in line with the LED indicator lamps to up the current draw, this will "trick" the flasher unit into working correctly.

I know which option I'd go for

[100BUR]

Classic Car LED'S gets my vote.

https://www.classiccarleds.co.uk/

Recently changed all dash bulbs indicators,side brake lights and flasher unit
Duncan at Classic Car LED'S provides all the info you need and his customers service is second to none.

[Tornado99]

Yes, you will need a flasher for LED lights. Cheap and easy o source from many places. Direct plug in sawp. There may be an issue with some types that don't play well with positive earth setup cars if that is your situation. Some types are polarity insensitive.

Be aware it is best to fit the correct LED colour to match the lamp lens colour...so red LED for brake/tail lamps, amber for turns etc.

[MiNiKiN]

As stated above you need a flasher compatible with LED's lower current.
I took one of these fancy flashers, opened an old aluminium round housing flasher and fit the LED one into it, to keep the original look of the flasher relais.

[rolesyboy]

Thanks a lot. Can you send me a link to one of these compatible flashers please . Cheers

[gazza82]

Don't change the ignition warning light bulb .. or if you do you'll need a resistor on it.

It uses the bulbs natural resistance to allow the dynamo/alternator to charge.

[timmy201]

Thanks a lot. Can you send me a link to one of these compatible flashers please . Cheers

There’s a couple of links above for Classic Car LEDS

Eg
https://www.classiccarleds.co.uk/produc ... 160f&_ss=r

[Tornado99]

Thanks a lot. Can you send me a link to one of these compatible flashers please . Cheers

I've used these 2-pin types with good results from Amazon:
https://www.amazon.ca/Electronic-Flashe ... B01I4OX514

[rolesyboy]

Unfortunately it needs to be a 3 terminal job.
Thanks anyway

[MiNiKiN]

Unfortunately it needs to be a 3 terminal job.
Thanks anyway

This' the 3 terminal version, which I used:
https://www.classiccarleds.co.uk/produc ... s=e&_v=1.0