Good evening all.
So today I decided to uprate my bulbs and change my yellow side lights to Cree led 7w bulbs. First installed them and checked they were working before putting everything back.
They looked great and really bright which is what I wanted.
I went out for a short drive but when I got back I noticed both bulbs were really dull. You can see the led has power, but barely any light output.

Any suggestions to what could be the issue and how to fix?

I have removed them, checked connectors but all seems ok. As mentioned, they are getting power and the led kind of glows, but no blinding light.

Thanks

 

I think you need to change the flasher unit to accommodate the LED lower wattage bulb .......

 

most likely a bad led.

 

Don't know. Last year I replaced my interior, trunk and license plate bulbs with leds. Last month I replaced my sidemarker bulbs with leds. All leds are as bright as the day I installed them. All leds were purchased from www.js2k.com

 

The OEM side turn signal bulbs are 5 watts, so the LEDs are actually higher power, though it's not significant. However, using a 7W LED to replace a 5W incandescent is EXTREME overkill. You should be using a 1W LED and may even get away with 1/2W. Unless you have some unique method to keep the LED cool, a 7W LED will get pretty hot in just a couple minutes and self-destruct.

What kind of heat sinking is provided? In my experience, something like a 2" x 2" heat sink with 1" high fins mounted where it can get air flow would be needed to keep a 7W LED operating at a reasonable temperature. Maybe even more heat-sinking is called for if you consider what the ambient temps will be in hot weather.

Was this just a replacement bulb or an entirely new housing? If just a straight bulb swap, there is no way a 7W LED will survive in the OEM housing.