DIY headlight LED help

stu_c · 09-12-2013, 02:29 PM

I have some 5mm LEDs in my car headlights which automatically come on when the vehicles ignition is turned, for some reason some of the LEDs have blown and now sure why, they are all 12V rated with resisitors fitted as standard.

When I put the ignition to the first click they come one then when I crank the car over they dim for a split second then brighten up when the cars running I wonder if its this thats causing them to blow if the alternator has a voltage spike?

I have the LEDs fitted like DRLs going from bottom
To top

they have blown about 3 times now and to fit them is a real pain as I have to take the lights apart but I love the look of them.

is there anything you guys would recommend doing or what LED bubs to use, would be greatly apprecitated.

09-12-2013, 02:29 PM	#1 (permalink)
stu_c Base Member Join Date: Sep 2012 Location: Milton Keynes Posts: 39 Drives: 370Z Yellow GT Rep Power: 13	DIY headlight LED help I have some 5mm LEDs in my car headlights which automatically come on when the vehicles ignition is turned, for some reason some of the LEDs have blown and now sure why, they are all 12V rated with resisitors fitted as standard. When I put the ignition to the first click they come one then when I crank the car over they dim for a split second then brighten up when the cars running I wonder if its this thats causing them to blow if the alternator has a voltage spike? I have the LEDs fitted like DRLs going from bottom To top they have blown about 3 times now and to fit them is a real pain as I have to take the lights apart but I love the look of them. is there anything you guys would recommend doing or what LED bubs to use, would be greatly apprecitated.

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