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> Fog light led conversion, Anyone done it?
GeorgeRud
post Feb 28 2017, 05:10 PM
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I was wondering if anyone has swapped out the original 35w bulb in the early round (worthless) fog lights for some LEDs? It should make a nice option and could be used as daytime running lights to help defend ourselves against today's brain dead drivers.

BTW, does anyone else have trouble with the search function giving too many results that don't seem to be relavent?
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rgolia
post Mar 1 2017, 01:54 PM
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Maybe spoke would be willing to make these up for those of us with poor eyesight and poor soldering skills. I have Spokes led lights as well. Should we PM Jerry?
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Spoke
post May 12 2017, 11:50 AM
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QUOTE(rgolia @ Mar 1 2017, 03:54 PM) *

Maybe spoke would be willing to make these up for those of us with poor eyesight and poor soldering skills. I have Spokes led lights as well. Should we PM Jerry?


Ralph, thanks for thinking about me.

I've shied away from these high power applications since they involve expensive LEDs and heatsinking like the worklight from Amazon mentioned earlier in this thread.

The boards I've done would be classified as "indicator lamp replacements" versus high power beams. The Amazon worklight burns 27W whereas my 914 brake boards burn less than 5W.

A difference between my boards and items like headlight and fog light is the beam. Turnsignals and brake lights should throw light in all directions which is why many lenses and reflectors have dimples and other diamond patterns.

Headlights and foglights need to be shaped beams such that they have good horizontal dispersion and a tight cutoff upwards as to not blind oncoming drivers. For example the worklight mentioned has a 30 degree beam dispersion. This parameter usually means 30 degree is the 1/2 light energy angle. So if the light is mounted horizontally, the 1/2 power angle is 15 degrees upwards and downwards. If these are very bright they may blind oncoming drivers.

I've seen a couple of trucks with large white LED panel mounted on the front of the cab. These were extremely bright and not a focused beam. I would imagine they may be illegal used as a forward light on a vehicle. The LED panel is likely targeted for general lighting and not for forward vehicle lighting.

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rgolia
post May 12 2017, 02:26 PM
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QUOTE(Spoke @ May 12 2017, 01:50 PM) *

QUOTE(rgolia @ Mar 1 2017, 03:54 PM) *

Maybe spoke would be willing to make these up for those of us with poor eyesight and poor soldering skills. I have Spokes led lights as well. Should we PM Jerry?


Ralph, thanks for thinking about me.

I've shied away from these high power applications since they involve expensive LEDs and heatsinking like the worklight from Amazon mentioned earlier in this thread.

The boards I've done would be classified as "indicator lamp replacements" versus high power beams. The Amazon worklight burns 27W whereas my 914 brake boards burn less than 5W.

A difference between my boards and items like headlight and fog light is the beam. Turnsignals and brake lights should throw light in all directions which is why many lenses and reflectors have dimples and other diamond patterns.

Headlights and foglights need to be shaped beams such that they have good horizontal dispersion and a tight cutoff upwards as to not blind oncoming drivers. For example the worklight mentioned has a 30 degree beam dispersion. This parameter usually means 30 degree is the 1/2 light energy angle. So if the light is mounted horizontally, the 1/2 power angle is 15 degrees upwards and downwards. If these are very bright they may blind oncoming drivers.

I've seen a couple of trucks with large white LED panel mounted on the front of the cab. These were extremely bright and not a focused beam. I would imagine they may be illegal used as a forward light on a vehicle. The LED panel is likely targeted for general lighting and not for forward vehicle lighting.

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Thanks Jerry - I really only use the fogs as day-time running lights and thought they would look better if they matched the color of your boards. I knew this wasn't gonna be easy. Love your LEDs. (IMG:style_emoticons/default/driving.gif)
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Posts in this topic
GeorgeRud   Fog light led conversion   Feb 28 2017, 05:10 PM
rgolia   I thought someone looked into this. I think the r...   Feb 28 2017, 05:25 PM
jkb944t   I was interested in this too but that bulb has an ...   Feb 28 2017, 08:28 PM
pbanders   These are $22 for a pair, fit into the standa...   Feb 28 2017, 10:11 PM
mramber   These are $22 for a pair, fit into the stand...   Mar 1 2017, 08:52 AM
pbanders   [quote name='pbanders' post='2459400' date='Feb 2...   Mar 1 2017, 05:40 PM
mramber   [quote name='pbanders' post='2459400' date='Feb ...   Mar 3 2017, 05:13 PM
pbanders   [quote name='pbanders' post='2459656' date='Mar 1...   Mar 3 2017, 08:47 PM
SKL1   Hmmm, PHX area? I'll look for you if you...   Feb 28 2017, 11:02 PM
Firstcar   George (OP), I wanted my freshly restored fog lig...   Mar 1 2017, 11:13 AM
rgolia   Firstcar...thanks for the info, i am going to give...   Mar 1 2017, 12:55 PM
GeorgeRud   Thanks, I was hoping someone may have found some r...   Mar 1 2017, 01:04 PM
Firstcar   Here's a shot with the lamps off. You can jus...   Mar 1 2017, 01:30 PM
mepstein   Here's a shot with the lamps off. You can ju...   Mar 1 2017, 01:51 PM
Biggles   Here's a shot with the lamps off. You can ju...   May 11 2017, 03:15 PM
rgolia   Maybe spoke would be willing to make these up for ...   Mar 1 2017, 01:54 PM
Spoke   Maybe spoke would be willing to make these up for...   May 12 2017, 11:50 AM
rgolia   [quote name='rgolia' post='2459597' date='Mar 1 2...   May 12 2017, 02:26 PM
porsche913b_sp   :popcorn:   May 11 2017, 04:22 PM
Firstcar   Chris, I think you have a different foglight than ...   May 11 2017, 05:10 PM
anderssj   Chris, Your light might be a slightly different v...   May 11 2017, 06:23 PM
Biggles   Steve/Scott Thanks for your replies. That makes t...   May 12 2017, 01:34 AM
87m491   Just Google H3 LED bulbs. I am sure you'll f...   May 12 2017, 04:29 AM
Biggles   Great thanks, the fog has lifted! Just Goo...   May 12 2017, 12:24 PM
morgan_harwell   The fog lights in my 914 use Halogen H2 bulbs. Has...   May 12 2017, 08:00 AM
anderssj   The fog lights in my 914 use Halogen H2 bulbs. Ha...   May 12 2017, 08:24 AM
StarBear   Was wondering - has anyone tried this (motorcycle ...   Jul 21 2022, 03:18 PM
jdamiano   I haven’t used those but if you want really nice...   Jul 21 2022, 06:57 PM
StarBear   I haven’t used those but if you want really nic...   Jul 21 2022, 08:15 PM


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