I have heard that they are really only good for using less power and don't produce heat. Most people I have heard of using them say there fine for the Daytime Running Lights as you aren't really worried about light output during the day. But this is mostly from Honda people that I've heard this from. Maybe you should be the guinea pig and try them out for all of us.
__________________ JEEP: The dirtiest of the four-letter words
If you're not paying ~$800+ for the set, I'd be willing to bet they aren't going to do you any good.
As has been said, probably to be used as DRL. LED HEADlights are still very expensive.
If you have crappy headlights, do an H4 conversion and make yourself a new heavy duty wiring harness. If it's still not enough get some of those IPF fatboys, or do a real HID conversion (with projectors - ~$400)
'98 XJ: UpCountry, bastard pack, 2" spacers, JK shocks, 31" BFG AT's
'81 Honda GL500
Colorado Jeep Club Member #399
just install them they only work when light turn on,no daylight and high beam work, waiting for tonight to see how it work at night, for the moment for wath i see it`s seem to be very white light compare to my h4 halogen. i will post again to give a review from my use at night.
Spend your money on a good quality H4 kit and some bright bulbs like IPF Fatboys. LEDs are not good for headlights. They produce lots of glare, yes, but the light ouput is not great. Thats why they are only recommended for daytime running lights. I have LED bulbs in my brakelights and they work great, but I wouldn't use them for fogs or headlights.