Oracle LED Headlight Bulb Conversion Kits
And I'm calling bullshit on the whole projector lights industry around the c5. Not one person has flashed me yet. It makes no sense to me that the original housing somehow would not try to project light properly in the direction needed. Especially when the original bulbs are so weak, you can't really afford to waste lumens. The only time you get blinded by someone is if they have raised their beams main directional axis above where it should be, or its a freaking SUV towering right in front, or someone is using high beams, or oncoming traffic driving over a hill or bridge.
To top it off the hid projector housing supposedly will misdirect the high beams, so now I have to buy the proper $600 radio flier version? Um, no.
So there is no bad. I'm embarrassed to say it took me about an hour to screw in the led bulbs because I got the direction and tab alignment wrong.
Last edited by nuts105; Dec 15, 2016 at 10:09 PM. Reason: Forgot





And I'm calling bullshit on the whole projector lights industry around the c5. Not one person has flashed me yet. It makes no sense to me that the original housing somehow would not try to project light properly in the direction needed. Especially when the original bulbs are so weak, you can't really afford to waste lumens. The only time you get blinded by someone is if they have raised their beams main directional axis above where it should be, or its a freaking SUV towering right in front, or someone is using high beams, or oncoming traffic driving over a hill or bridge.
To top it off the hid projector housing supposedly will misdirect the high beams, so now I have to buy the proper $600 radio flier version? Um, no.
So there is no bad. I'm embarrassed to say it took me about an hour to screw in the led bulbs because I got the direction and tab alignment wrong.





Do a search, there are some threads on modifying a hi beam bulb to fit in a low beam socket. This will give you more light and have the correct dispersion for the factory housings.
Someone also sells an adapter that will leave the low beams on when you hit the hi beams for even more light.
Good Luck.
Nuts, did those eBay Led bulbs require ballasts? Most of the "higher quality " led headlight bulbs I've seen have large heat sinks and built in fans.
I tried a set of HID's from eBay on my Z, and tho' I never got flashed by oncoming, they lasted no more than 6 months. First a ballast blew, and then they screwed up the pop ups. I ripped them all out, found out about the Toshiba HDR bulbs for the highs, and got a set of "special"PIAA's for the lows. Not like light cannons, but much better than stock.
This c5 has 9011/9012 converted to the stock housings. Light is brighter, but they need to be properly aimed, which I've been avoiding.
Last edited by chasboy; Feb 19, 2017 at 09:49 PM.
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I have to agree with the above posts LEDs have a lot of potential but right now only the OEMs have reliable cooling solutions along with the light control issues.




I have to agree with the above posts LEDs have a lot of potential but right now only the OEMs have reliable cooling solutions along with the light control issues.
Halogens and HIDs emit most heat in the form of infrared radiation. That means that the heat leaves the bulb immediately, which leads to heating of the housing and the lens. HIR bulbs (like 9011 and 9012 bulbs) take advantage of the infrared radiation by having a coating that reflects infrared back to the filament, superheating it and making it emit more visible light for the same wattage. HIR is a technology that should be applied to all halogen headlight bulbs, but unfortunately is found only in 9011 and 9012 bulbs, which can be retrofitted into 9005 and 9006 housings respectively.
LEDs create heat at the base of the chip. That means unless there is some sort of heatsink, the heat just stays there and builds up. Even if there is a heatsink, if the heatsink isn't exposed to moving air, eventually the heat will saturate it and it wouldn't be able to cool the LEDs. That's why many have fans to create air circulation, but fans are just a part that will eventually fail in the harsh environment that is a car. Additionally, LED light output degrades as temperature increases. The engineering required for LED headlights is the biggest reason why true LED housings are more expensive than HID or halogen housings.
Nuts, did those eBay Led bulbs require ballasts? Most of the "higher quality " led headlight bulbs I've seen have large heat sinks and built in fans.
I tried a set of HID's from eBay on my Z, and tho' I never got flashed by oncoming, they lasted no more than 6 months. First a ballast blew, and then they screwed up the pop ups. I ripped them all out, found out about the Toshiba HDR bulbs for the highs, and got a set of "special"PIAA's for the lows. Not like light cannons, but much better than stock.
This c5 has 9011/9012 converted to the stock housings. Light is brighter, but they need to be properly aimed, which I've been avoiding.
Nuts, did those eBay Led bulbs require ballasts? Most of the "higher quality " led headlight bulbs I've seen have large heat sinks and built in fans.
I tried a set of HID's from eBay on my Z, and tho' I never got flashed by oncoming, they lasted no more than 6 months. First a ballast blew, and then they screwed up the pop ups. I ripped them all out, found out about the Toshiba HDR bulbs for the highs, and got a set of "special"PIAA's for the lows. Not like light cannons, but much better than stock.
This c5 has 9011/9012 converted to the stock housings. Light is brighter, but they need to be properly aimed, which I've been avoiding.
And I'm calling bullshit on the whole projector lights industry around the c5. Not one person has flashed me yet. It makes no sense to me that the original housing somehow would not try to project light properly in the direction needed. Especially when the original bulbs are so weak, you can't really afford to waste lumens. The only time you get blinded by someone is if they have raised their beams main directional axis above where it should be, or its a freaking SUV towering right in front, or someone is using high beams, or oncoming traffic driving over a hill or bridge.
To top it off the hid projector housing supposedly will misdirect the high beams, so now I have to buy the proper $600 radio flier version? Um, no.
So there is no bad. I'm embarrassed to say it took me about an hour to screw in the led bulbs because I got the direction and tab alignment wrong.
I agree with most everything said above.....ebay $34.95 Best money spent on headlights yet. Took me about 5 minutes a side for bulb install. Its soft white light with great coverage and no blinding of oncoming traffic. We have 66 spotlights in our home and have changed all to LED's. What an upgrade. Each room is cooler by about 1 1/2 degrees...which is a big deal in South Florida.Have not installed the "hyper flash harness" b/c all lights and turn signals work normally.
Last edited by runner140*; Mar 27, 2017 at 07:38 AM. Reason: Add a line...
I agree with most everything said above.....ebay $34.95 Best money spent on headlights yet. Took me about 5 minutes a side for bulb install. Its soft white light with great coverage and no blinding of oncoming traffic. We have 66 spotlights in our home and have changed all to LED's. What an upgrade. Each room is cooler by about 1 1/2 degrees...which is a big deal in South Florida.Have not installed the "hyper flash harness" b/c all lights and turn signals work normally.
Last edited by doublenut9; Mar 27, 2017 at 09:16 AM.








