LED bulb problems
LED bulb problems
Author
Discussion

chr1sb

Original Poster:

126 posts

235 months

Tuesday 2nd September 2008
quotequote all
Just fitted LED side/stop lamps plus indicators, bought from Ultraleds. The indicators now flash so quickly they are almost on continuously. Is this normal for LED indicator bulbs ?
Bigger problem though, is radio interference. When the side lights are switched on there is a continuous background hiss. Not loud I admit, but it gets worse when I brake or use the indicators.

Anyone else had this experience ? Is it just the brand I bought or should I expect this from any LED bulb ?

I am awaiting a response from Ultraleds, but will have to send them back if no solution offered - too expensive to tolerate these issues ! Hoping they won't argue about it.

Thanks,

Chris

pilgrim13

103 posts

220 months

Tuesday 2nd September 2008
quotequote all
You need to fit resistors to slow down the flash, the same company should sell them

pilgrim13

103 posts

220 months

Tuesday 2nd September 2008
quotequote all
This is what you need for the fast flashing
http://www.ultraleds.co.uk/1156-single-amber-pins-...

chr1sb

Original Poster:

126 posts

235 months

Tuesday 2nd September 2008
quotequote all
Hi Mark,

Thanks for that - didn't notice this item when I bought the LEDs. Any thoughts on the radio interference ?

Chris

pilgrim13

103 posts

220 months

Tuesday 2nd September 2008
quotequote all
chr1sb said:
Hi Mark,

Thanks for that - didn't notice this item when I bought the LEDs. Any thoughts on the radio interference ?

Chris
Sorry no idea on the radio, only know about the bulbs as I had the same problem on a motorcycle

Johno

8,593 posts

313 months

Tuesday 2nd September 2008
quotequote all
As my Griffith runs the same electricals being an SE as a Chimaera you may find that if you go for the relay flasher unit alone it is not enough to stop the fast flasing.

Mine also needed the in line resistors fitted to the rears to solve it, may find the same with yours.

I had done the rears previously added the fronts and still had the issue having replaced the in lines for the flash relay, wouldn't solve it until I added back in the in lines to the rears.

Also be very careful when fitting the relay as they are very sensitive to spikes and at £15 a go they're expensive to blow up fiddling.


chr1sb

Original Poster:

126 posts

235 months

Tuesday 2nd September 2008
quotequote all
Thanks Johno.

The in-lines seem to offer the more cost effective solution in any case if I understand you correctly. No need to remove the dash top either, although I did this recently & didn't find it as difficult as some ! BTW, how did you mount the resistors - did you fit heat sinks also ?

I'm more concerned about the radio interference though, to tell the truth.

Chris

David Beer

3,982 posts

298 months

Wednesday 3rd September 2008
quotequote all
I have led indicators and if you remove a shunt resistor in the original flasher they don't flash fast!