yes you are right, it don`t need so big of a heat sink for just the turn indicators.
A smaller 1 will do the join just fine. But if itis for the red bit then it will need a big heat sink.

 

Does anyone remember how these aftermarket LED tail lights worked. i.e. did the LEDs become brighter or do more LEDs light up with the brakes are pressed.

 

probably more LEDs light up when brakes are press. LEDs dont' really get any brighter after reaching its optimum brightness--it will burn out.

 

Exactly what I tot. But if you look at the pictures it seems like they get brighter. Unless there are dual LEDs and wired up accordingly so the look like one bulb. What happens when you power an LED to half its optimum voltage, is it any dimmer.

 

I know when you brake the red leds get brighter, but I will check after work to see if itis 1 to 2 leds.

 

yes itis dimmer

 

I came across an 3 pin LED flash blinker fix on ebay and was woundering if that would be a solution to the flashing LED during the inital start? If anyone would knowledge to this fix instead of an resistor to the hook up of the NEW LCI taillights its much appreciated. Will this solution work??

http://cgi.ebay.com/ebaymotors/3-PIN-EUROP...74781QQtcZphoto

 

using a resistor set up....LEDs will be very dim if the current is less than optimal. however, LEDs don't get dimmer as linear as a light bulb. it goes from very dim to bright or bright to very dim without the big fading effect. the aftermarket LED might might use a resistor circuit in which more current will power the LED when 12v is used and less current when 6v is enabled. since resistance value is the same, bigger/lesser voltage will allow less/more current for LED. however with bmw oem it most likely use an LED driver circuit. with the driver it still can accept different voltages (6v or 12v).....the output current will still be constant value--this means the LED will be same brightness regardless of voltage input.

 

it is for vehicles with the flasher build onto the connector. i think bmw uses the lcm and do not have flasher on the connector. it is replacement fix for the turn signal LED flashing too rapidly. the strobe light blinking 5 seconds effect is something else and has to do with the lcm sending low power electrical impulses to check for lightbulbs.

 

This is not true at all cos I have installed blue 1feet and 2feet LED inside the car and when I close my door all my blue led dim down, like the bulbs.