LED Foglight Project Options

[Spoke]

The metal clips will need to be made for each unit. The original only had 2 clips and I'm using 4 clips for the PCB plus the clips are deeper than the originals.

[Spoke]

The PCB fits nicely in the case. Will run this for a while to make sure the temperature rise is ok.

[Spoke]

Not sure how to connect up to the existing wires yet. The ground spade and wire in the fixture were not in good shape with a fair amount of oxidation.

[ClayPerrine]

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.kym-cdn.com-1143-1556938214.1.jpg)

[Chi-town]

Can you take a pic of the light output on a wall from about 8' away?

[Spoke]

This is the light pattern projected on the ceiling about 7 feet away.

[Spoke]

Got the prototype lit up in the foglight enclosure. Been running this at 12V @ 1A for about 2 hours. The internal temps seem to be ok at about 65C. This means a temperature rise of about 45C. So in 50C weather, the internal temps should be below 100C.

Later tonight or tomorrow I hope to compare the light output with the fogs on my '71.

[Spoke]

Compared the output of the LED foglight to the foglights on my '71. Here's the standard foglights on the car. The light has a nice cutoff top and bottom giving just a narrow light band.

[Spoke]

The driver side foglight is covered up and the LED foglight is lit up right next to the car. The LED does not have a sharp cutoff and the additional intensity of the LED washes out the tight cutoff of the passenger side foglight.

At 1 meter, here are the measurements of the lamps:
914 Foglight: 1800 Lux
LED Foglight: 5500 Lux

The LED foglight is 3x brighter than the standard foglight on my '71 although the upper cutoff is not as sharp with the LED as the standard foglight. The LED may need to be adjusted a bit lower to not be too bright to oncoming drivers.

[Chi-town]

That upper washout will be blinding to oncoming traffic (IMG:style_emoticons/default/sad.gif)

[Luke M]

Would the fog light lens make a difference ?
I do not know so I figured I throw it out there.

Your 71 should have the early TN1-TN2 lens.
The LED fog lens is a later TN4.

[Spoke]

Would the fog light lens make a difference ?
I do not know so I figured I throw it out there.

Your 71 should have the early TN1-TN2 lens.
The LED fog lens is a later TN4.

Yes the '71 has the early lens and the LEDs have the later lens. The lens has got to have an effect on the light pattern. The TN4 with the LEDs actually makes brighter vertical bars. It would be best to have no lensing with the LEDs but the goal is to retro-fit these LEDs in existing fixtures.

I need to put the LEDs in an early TN1/2 lens. Anyone have a TN1/2 fixture they would like to volunteer for a while? Where's @mepstein ?

[mepstein]

Would the fog light lens make a difference ?
I do not know so I figured I throw it out there.

Your 71 should have the early TN1-TN2 lens.
The LED fog lens is a later TN4.

Yes the '71 has the early lens and the LEDs have the later lens. The lens has got to have an effect on the light pattern. The TN4 with the LEDs actually makes brighter vertical bars. It would be best to have no lensing with the LEDs but the goal is to retro-fit these LEDs in existing fixtures.

I need to put the LEDs in an early TN1/2 lens. Anyone have a TN1/2 fixture they would like to volunteer for a while? Where's @mepstein ?

I can send you one tomorrow.
@Spoke

[Spoke]

Would the fog light lens make a difference ?
I do not know so I figured I throw it out there.

Your 71 should have the early TN1-TN2 lens.
The LED fog lens is a later TN4.

Yes the '71 has the early lens and the LEDs have the later lens. The lens has got to have an effect on the light pattern. The TN4 with the LEDs actually makes brighter vertical bars. It would be best to have no lensing with the LEDs but the goal is to retro-fit these LEDs in existing fixtures.

I need to put the LEDs in an early TN1/2 lens. Anyone have a TN1/2 fixture they would like to volunteer for a while? Where's @mepstein ?

I can send you one tomorrow.
@Spoke

Thanks. You mentioned you had a nicer foglight fixture you wanted to use on your car. Are you sending that set too? I want to get the boards built up for your car and I might as well have the fixtures so I can install the boards on the lenses.

@mepstein

[mepstein]

Would the fog light lens make a difference ?
I do not know so I figured I throw it out there.

Your 71 should have the early TN1-TN2 lens.
The LED fog lens is a later TN4.

Yes the '71 has the early lens and the LEDs have the later lens. The lens has got to have an effect on the light pattern. The TN4 with the LEDs actually makes brighter vertical bars. It would be best to have no lensing with the LEDs but the goal is to retro-fit these LEDs in existing fixtures.

I need to put the LEDs in an early TN1/2 lens. Anyone have a TN1/2 fixture they would like to volunteer for a while? Where's @mepstein ?

I can send you one tomorrow.
@Spoke

Thanks. You mentioned you had a nicer foglight fixture you wanted to use on your car. Are you sending that set too? I want to get the boards built up for your car and I might as well have the fixtures so I can install the boards on the lenses.

@mepstein

I have two early sets I can send you. One question, to remove from the car, where are the wires connected.

[Spoke]

I have two early sets I can send you. One question, to remove from the car, where are the wires connected.

That's a good question. I don't know how the foglight ties in with the wire loom. That's still something I need to work out. The wires on my '71 foglights are very short at the fixture. Not sure if there's more slack inside the trunk.

It would seem that the 914 wire harness would include the wires right to the foglight as part of the harness.

[mepstein]

I have two early sets I can send you. One question, to remove from the car, where are the wires connected.

That's a good question. I don't know how the foglight ties in with the wire loom. That's still something I need to work out. The wires on my '71 foglights are very short at the fixture. Not sure if there's more slack inside the trunk.

It would seem that the 914 wire harness would include the wires right to the foglight as part of the harness.

So should I cut wires and plan on adding connectors or can I remove wires at the housing. I’ll do whatever you think best.

[JeffBowlsby]

Open the housing and disconnect the wires! No cutting allowed!

[worn]

Open the housing and disconnect the wires! No cutting allowed!

Certainly cut no wires. Looks like a plus for us all. Now, since I have a pair of old Bosch rectangular fog lights mounted on my TR6, should I order LEDs for a Porsche or a Triumph?

[Spoke]

Open the housing and disconnect the wires! No cutting allowed!

Agreed. My LED boards are designed to be plug'n'play without cutting the vehicle wiring using the existing bulb plug to power the LEDs. An exception to that are the Triumph Spitfire and TR6 where the bulb sockets are so unreliable that LED boards connect directly to the wire loom bypassing the bulb socket.

For the 914 foglight, there's not much play in the wiring at the foglight fixture. I didn't think there was a connector for the the fogs inside the trunk. One issue is the condition of the ground spade connector. The one foglight fixture from Mark the ground spade was rusted onto the lug on the fixture. For the foglight the original bulb socket will not be used as the reflector and bulb socket are not used with the LEDs.

I'll make it work with the existing wires.