Carl Fausett

It took a little doing to find the right LED bulb for our fog lights that would fit correctly without any mods, but we've found them. Most are too long and require the fog light be modified to remove the integral light shield. But then your light pattern is ruined - and the light flares up in the fog. We have found the right bulbs that fit behind the shield so the light has a nice crisp cut-off.

1978-1986 take one pair of fog light LED's and we have the matching color LED's for your position lights as well.

1987-1995 take two pair of the H3 LED's, one for driving lights and one for fog lights.

All our LED fog and position light bulbs come equipped with an integral IC driver to ensure the correct wattage is provided to the LED chips. This constant-current driver provides the brightest, non-flickering light and longest life expectancy. Cheap LED bulbs do not have this feature.

More info and pictures here:
http://www.928motorsports.com/parts/led_light_bulbs.php

928Myles

Carl,
looks good.

1 - Do you have any info on the beam pattern in the driving light position?
2 - How far away from the white board are the lights in the beam pattern shots?
3 - Lumens & wattage please.

Thanks.
Myles

DKWalser

Carl -- Are the "integral IC drivers" (which look like a power supply brick) designed to withstand the harsh environment under a car? If so, how/where do you suggest mounting them? I don't think I'd want them hanging loose.

Carl Fausett

David - we found we did not have to mount them at all - they hung without trouble right behind the light. You could zip-tie them to anything, or leave them be as we did. They are very near the plastic rear cover of the fog lamp, so they are held up pretty well.

This picture shows them.

Yes, these are intended for external use automotive applications. 1 year warranty free replacement should they fail.

Carl Fausett

1 - I do not have photos of the driving light pattern, but I can tell you it is unchanged from the stock driving light pattern. The demarcation lines are crisper and more precise.

2 - That white board was about 2 feet away from the lights is all. I was just trying to show the light pattern is still as it was, in fact, it is sharper.

3 - Lighting output: 2800 lumens for each bulb. Total 5600 lumens
Power consumption: 50W at 12v

Carl Fausett

Installation of these bulbs is shown in this sequence.

You may take a drop of RTV silicone on your fingertip after it is all installed and seal up where the wiring enters the plastic rear cover if you wish.

Ad0911

Are the positioning lights bright enough to be suitable as day time lights? Or is the pattern of the beam not suitable for that because of the lens?

DKWalser

Carl -- Thank you for the prompt reply to everyone's questions. I'm sure I could find somewhere to zip tie the blocks to keep them from moving.

In response to someone's question, you said that these consume 50w at 12v. I assume that's true for a set of two? The standard halogen bulb is 55w. So we're talking an energy savings of just over 50%. Not bad.

Tom in Austin

Just curious ... aren't LEDs inherently low-temperature? Surprised to see the big braided heat-sink on the back ...

Carl Fausett

You guessed right - its the lensing for the position lights. They only had a 21w bulb in there - not meant to assist the driver, more of a "parking light" - just meant to be seen by others. Our position lights are brighter, but we didn't want to go nuts for fear they would flare up in fog.

You are correct. I believe the super-high-output LED's like this make more heat. It isn't much, as you can tell, or a passive cooling system like this wouldn't work.

Correct, consumes 50w for the pair. Slightly less than half of OEM halogen.

Carl Fausett

I just spoke to my guy about the heat sinks. He reminded me that the LED's themselves do run very cool, but the little step-down voltage block that takes the 12v input and makes the 3.2v output the LED's like... that's what makes the heat and needs the cooling.

bureau13

Correct...I have LEDs lighting my reef tank. The put way less heat into the water from the bulbs, but on the back there is a significant heat sink with a fan, and it gets quite warm.

mark kibort

looks like a great solution for headlight delete race cars too (that stilll might be driven on the, ahem, street )

Ad0911

In fact, Daytime Running Lights or DRL's are not supposed to assist the driver by illuminating the world at daytime, but are meant to make sure others see the car during daytime. The official DRL's shine light in "every" direction to the front. There is a lot of legislation about DRL's:
https://en.wikipedia.org/wiki/Automotive_lighting

It says:
Passenger cars and small delivery vans first type approved to UN Regulation 48 on or after 7 February 2011 must be equipped with DRLs; large vehicles (trucks and buses) type approved since August 2012 must be so equipped.[28][28][29][30][31] Functional piggybacking, such as operating the headlamps or front turn signals or fog lamps as DRLs, is not permitted;[32] the EU Directive requires functionally specific daytime running lamps compliant with UN Regulation 87 and mounted to the vehicle in accord with UN Regulation 48.[33]

Prior to the DRL mandate, countries requiring daytime lights permitted low beam headlamps to provide that function. National regulations in Canada, Sweden, Norway, Slovenia, Finland, Iceland, and Denmark require hardwired automatic DRL systems of varying specification. DRLs are permitted in many countries where they are not required, but prohibited in other countries not requiring them.[25]

Front, side, and rear position lamps are permitted, required or forbidden to illuminate in combination with daytime running lamps, depending on the jurisdiction and the DRL implementation. Likewise, according to jurisdictional regulations, DRLs mounted within a certain distance of turn signals are permitted or required to extinguish or dim down to parking lamp intensity individually when the adjacent turn signal is operating.[7][18]

So in short, fog lights are not permitted to be used as DRL. Positionig lights will not comply with DRL legislation. In countries were DRL's are required by law (not in the Netherlands), positioning lights will not be allowed to be used as DRL's. In countries where DRL's are not required, you can use the positioning lights any time you like, also during daytime. So in these situations where DRL's are not required by law, the positioning lights can be used as surrogate DRL's. That is what I intend to do. I have a special electric circuit ready that will switch on the DRL when contact is on and headlamps are off. With your LED's in place the positioning lights will be more effective as DRL. This will make the extra DRL's I have ready to be installed under the bumper redundend. This is good.

Carl Fausett

I have gotten some emails from 928 owners that have bad/broken fog lights.

Just to let you know I have about 4 sets of good used early fog lights and some position lights in stock.