#1: Overloading a 12v live feed maybe? Author: tris_asd, Location: kent, ukPosted: Tue Mar 27, 2012 2:48 pm ---- I'm in the process of adding footwell lights in the old 206. I've wired the first one in (into the ashtray 12v feed). The first one works perfectly when i tested it back to the negative.
Then I added the drivers side one in series onto the passenger one, and connected it, and neither of them light up.
The connections on the second one are fine so I don't really understand it.
Could it be that the 12v feed is being overloaded? There is two 50cm strip LED's. One lights up perfectly, second one added and they both don't work.
Thanks
#2: Re: Overloading a 12v live feed maybe? Author: Steve206, Location: UKPosted: Tue Mar 27, 2012 3:04 pm ---- If its overloaded, the fuse will blow.
#3: Re: Overloading a 12v live feed maybe? Author: tomd0801754, Location: MoscowPosted: Tue Mar 27, 2012 3:04 pm ---- Do they work after on is removed?
#4: Re: Overloading a 12v live feed maybe? Author: tris_asd, Location: kent, ukPosted: Tue Mar 27, 2012 4:07 pm ---- I've tested the second LED strip indoors and it works fine.
After on is removed? Ehh? After I remove the second one, the first one works fine again. And i've tried connecting and reconnecting the second one a bunch of times with no luck.
Maybe the positive and negative on the second LED's are the opposite way around to the first set, they are from China....
#5: Re: Overloading a 12v live feed maybe? Author: tomd0801754, Location: MoscowPosted: Tue Mar 27, 2012 4:28 pm ---- Well you haven't blown the fuse if it works again. What colours are the wires? Do you have an eBay link?
Also for my possible amusement, what year is your car?
#6: Re: Overloading a 12v live feed maybe? Author: tris_asd, Location: kent, ukPosted: Tue Mar 27, 2012 5:17 pm ---- The feed wires are blue which is the live and yellow/green which is the neg/earth. And on the LED's there's a clear and a red wire.
#7: Re: Overloading a 12v live feed maybe? Author: mtempsch, Location: Gothenburg, SwedenPosted: Tue Mar 27, 2012 11:35 pm ----
tris_asd wrote:
I've tested the second LED strip indoors and it works fine.
After on is removed? Ehh? After I remove the second one, the first one works fine again. And i've tried connecting and reconnecting the second one a bunch of times with no luck.
Maybe the positive and negative on the second LED's are the opposite way around to the first set, they are from China....
If you are actually, as you said in the first post, wiring them in series, then they're effectively only getting 6V each and that's likely to be below the threshold voltage required (internally they typically have a number (3) LED's in series w 1 resistor, then this repeated - so the voltage required is then 3x Vf, where Vf depends on colour and exact type of LED's).
The strips should be connected in parallel.
Is the ashtray bulb still connected - if so, what's it doing when you've got the second strip connected, still lit up or dark?
#8: Re: Overloading a 12v live feed maybe? Author: V9977, Location: Athens, GreecePosted: Wed Mar 28, 2012 3:29 am ----
mtempsch wrote:
tris_asd wrote:
I've tested the second LED strip indoors and it works fine.
After on is removed? Ehh? After I remove the second one, the first one works fine again. And i've tried connecting and reconnecting the second one a bunch of times with no luck.
Maybe the positive and negative on the second LED's are the opposite way around to the first set, they are from China....
If you are actually, as you said in the first post, wiring them in series, then they're effectively only getting 6V each and that's likely to be below the threshold voltage required (internally they typically have a number (3) LED's in series w 1 resistor, then this repeated - so the voltage required is then 3x Vf, where Vf depends on colour and exact type of LED's).
The strips should be connected in parallel.
Is the ashtray bulb still connected - if so, what's it doing when you've got the second strip connected, still lit up or dark?
good post.
#9: Re: Overloading a 12v live feed maybe? Author: tris_asd, Location: kent, ukPosted: Thu Mar 29, 2012 3:16 pm ---- Fixed it. Connected it in parallel after the on/off switch I took the live feed from and now it works, because both strips are getting the full 12v each. had to use a bit more wire but it's all good. Thanks.
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What colours are the wires? Do you have an eBay link?
good post.
