E30 Zone

Anyone ever replaced the bulbs in an OBC to LED's? I've got the LED's and the OBC but when I look at the light strip, I can't tell which is Pos + and which is Neg -. And with an LED i'm sure you need to get them the right way round.

Yes, they have to be the right way round and you would need a resistor in series with the LED. what is the voltage to the light strip?

I did this last year to mine,well Benjy soldered them in place but hey
I posted up the same question on here but canrt find the thread to find the answer again
Im certain the top was positive but wait for Smithy or someone to confirm before relying on my word

jon_d_h wrote:Yes, they have to be the right way round and you would need a resistor in series with the LED. what is the voltage to the light strip?

Says 10v on the strip.

I've bought these

http://www.ultraleds.co.uk/u12v60w-whit ... 5099a0d028

Thanks eko. I'll wait for him to post up

Ok, they have the resistor built in so dont need one. The higher the voltage, the brighter the light so 10v will give a decent amount of light. Try putting the red wire to the top and the black to the bottom and give it a go. All that can happen if they are the wrong way round it it wont light up.

Cheers

jon_d_h wrote:Ok, they have the resistor built in so dont need one. The higher the voltage, the brighter the light so 10v will give a decent amount of light. Try putting the red wire to the top and the black to the bottom and give it a go. All that can happen if they are the wrong way round it it wont light up.

Cheers

Problem is the obc kit is on the bench. We know the bulbs have blown but I've got no way of testing them in the obc

ask Demlot Trev he's done this several times. I should too really!

B7 wrote:Anyone ever replaced the bulbs in an OBC to LED's? I've got the LED's and the OBC but when I look at the light strip, I can't tell which is Pos + and which is Neg -. And with an LED i'm sure you need to get them the right way round.

http://newling.no-ip.com/rep/bordcomput ... licht.html

yup when you take the bulbs off you will see the negative and positive indicators on the tracks.

Sorry only got your pm!

In the link smithy posted, it says you need to buy a resistor, but as jon-d - h says the resistor
is already there. Am i right in thinking the link is slightly wrong in that respect, or am i missing something.