I guess I was the guinea pig a while back.
These might help you guys decide if they are worth it.
It got me in some trouble as the DMV inspection guy thought the LED was too bright!
Taken from my thread on the cree leds, I set my camera at fixed f-stop and speed so the camera would adjust to the different light conditions. Also, the road was wet so it is a bit darker than a dry road...here's the result:
With original H4 filament bulb.
Here's the LED output, same camera settings.
You'll see the background intensity didn't change, but the white car is a bit more visible!
You can barely see the shadow that the car casts from the light post in the previous picture.
