IowaClass65

Just to be clear, did you buy these? Hella 003427811.
https://www.quadratec.com/products/97009_6011.htm

Lawman31

aklim

If you are OK with doing the 168 light sure. I went to https://www.superbrightleds.com/moreinfo/flashers-load-resistors/headlight-load-resistor-kit-h4-led-headlight-bulbs/2179/

dizwiz24

aklim

Worked OK for me. You have to adjust the unit though

johno504

Yes I did . delivery Saturday.

ctmccloskey

Hello Out there!

If you loose 10% of the voltage (12.5-11.8) you loose more than 30% of your light according to what I have read.

I don't know what the voltage is at the headlight bulb connection of your car but on my C3 the voltage was near 11 volts with headlights "on" along with the engine-running and battery-charging.
SPEED DIRECT offers new light harness' that actually supply full battery voltage at the bulb's power connection. A common issue has been the voltage at the bulb is lower than it should be going through all the high resistance wires. Try it on your car, measure the headlight voltage with the engine running and headlights on and see just what you get. Now supply full battery voltage to the same bulb and watch what happens. The bulb produces much more light with full voltage. With that said I would try to get a full battery voltage at the bulb while the car is running and this can be accomplished fairly easily with a couple relays and some wire and a few hours time. On a Corvette I would supply both the battery voltage and a solid ground connection as our grounding systems are different from metal cars. I used the headlight power to activate a relay that supplies full battery voltage at the light bulb right from the battery using a 10 gauge wire in that case.. This way the lights are brighter than you can imagine using the older standard bulbs.
When I tested it one bulb was yellowish(@11.3 Vdc) and the other bright white (@14.2 Vdc) and it was amazing the first time I tried driving with my headlights getting full voltage. This experience was on a 1968 C3 where the wiring was much easier to find and work on. You can build the harness yourself and save a lot of money while getting the most out of the original style bulbs!

Here is the Speed Direct link to their headlight harness': https://cmc.speeddirect.com/customki...10-SK503-1&eq=

Be very careful to never exceed the current dedicated to the original headlights or you can make a real mess of your wiring system. A more powerful bulb requires rewiring the headlight circuit to produce sufficient current keeping the voltage correct. This is the reason for the harness from Speed Direct in the first place, they want you to buy their expensive headlight upgrade. The harness from Speed Direct is designed to handle 240 watts per side which is a lot of power. With the new types of light bulbs we have found that you really don't need 500 watts for your headlight, at least I hope not!

Good Luck and may the Light coming from your Corvette be as bright as it can safely be, without spending a fortune.

Have an awesome day!

P.S. LAWMAN31, You did see the notice that those lights are only approved for "Off Road use only", right? Just pointing it out as they will not have the DOT approval marked on them. Check your voltages like I mentioned above before spending any hard cash on new headlights.

pifo1964

That´s for sure

Try this or you won´t be able tu turn on the fog lights.

https://www.corvetteforum.com/forums...-solution.html

Very easy.

aklim

The superbright site is even easier Plug in line and forget about it. No soldering, cutting, splicing, etc

pifo1964

Reading your advice in other threads, I went first with the resistors, but after turning off the high beam, the blue witness light on the dash won´t go until switching off the car lights completely. Also needed 2 resitors to the fog lights to work.
Probably were the resistors I could find locally.

Finally I ended putting a single bulb 168 whith it´s wires directly connected to the male pins of the headlights and secured all with tape, without cutting or soldering anything.

IowaClass65

Great, thanks and good luck! Let us know how you like them. I have to replace the headlight motor gears and I might as well change out the lamps at the same time.

Lawman31

aklim

Most stealth way is to buy the resistor and it works as a plug in and no cutting and splicing. It plugs in line WITHOUT any work.

Lawman31

aklim

IDK if that is the right plug or if that will work. I know what I have to solve my issue: https://www.superbrightleds.com/more...lbs/2179/5079/

Lawman31

johno504

LOL, me too. plan to kill all the birds with one stone.

aklim

Kill enough birds and make it a new car?

MatthewMiller

Maybe if you guys quit running into birds with your cars, your headlights would still work!

johno504

AT $14k parts and labor in 5,000 miles I have killed a whole flock and now have 1/2 of a new car. went to a Jag dealer thinking about an XK trade, was offered $7k for my 25k CE. All the documented repairs/restoration added up to nothing at the stealership. not surprised