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The LED SAE J583 Fog Pod & Fog Light Review

Discussion in 'Lighting' started by crashnburn80, Jun 20, 2018.

  1. Aug 13, 2018 at 5:32 AM
    #181
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Rigid does make a driving light pattern in their D-series pods, and their Pro D-series are brighter than their SAE fog pods. However a ‘driving’ light beam pattern is a high beam pattern, even with a street legal SAE J581 (driving) compliant beam it is still a high beam, meaning it shouldn’t be used with oncoming traffic.

    The Rigids do have a very nice hard cut off and tall beam area, if trying to use to supplement low beam performance they may be a better option than using upgraded factory fogs.
     
  2. Aug 13, 2018 at 6:08 AM
    #182
    MCDavis

    MCDavis Taco life is over. Full time 4wd for the win.

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    my $.02
    I ran Rigid's very early release SAE fogs on my previous truck. They are fabulous in many aspects, and nearly serve as a supplemental low beam. Ran them for 2 years with Ford's factory OEM HIDs and the compliment was stellar. One complaint...TONS of foreground lighting. Great in the city, but definitely lead to some eye strain on long dark highway stretches. I often turned the Rigid SAEs off during highway use.

    I've had my KC G4s on for a few weeks now and I'm very impressed with what they've done. The beam length isn't what you'll get from a Rigid SAE, but the even spread and ditch lighting capability is top notch. The foreground lighting isn't as severe either.
     
  3. Aug 13, 2018 at 6:35 AM
    #183
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    The KC G4s are pretty stellar. You do bring up a good point about foreground light though, as the foreground light from fogs reduces night distance vision. Fogs should only be used when needed, and not at high speed where distance vision is important.
     
  4. Aug 16, 2018 at 9:08 PM
    #184
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Got some Rigid amber covers to try out thanks to @TRD2010SpeedwayBlue. Update coming in the near future on how the amber covers affect output with the Rigids.
     
  5. Aug 18, 2018 at 1:59 PM
    #185
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Who says Rigid amber pod covers cannot mount on an 05-11 Tacoma. The adapter brackets just need a little convincing. @TRD2010SpeedwayBlue

    4887EC09-EDAF-409F-A698-D19A92C8C33F.jpg
     
    Last edited: Aug 18, 2018
  6. Aug 18, 2018 at 11:09 PM
    #186
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Many people have asked for an amber fog comparison to the white fogs tested in the thread. Here are the Rigid pods with amber covers in testing.

    x3W%fhO9QeyHERQzllUFKA.jpg

    Uncovered Rigids on top, amber cover on bottom
    FluG%HzMQaWDXjY2FA94sQ.jpg

    Output and color temp numbers
    fullsizeoutput_d0e.jpg

    Spectrum comparison
    fullsizeoutput_d0f.jpg

    All colored filters reduce light output, which is why I always recommend against color filtered headlight bulbs. You can see in the numbers here the output loss by using amber covers is near 50%. This number seems far higher than the advertised loss promoted by Rigid. However, the amber covers put output about on par with the OEM TRD Pro LED fogs. It is easy to see the loss in the spectrum comparison graph. The color is a very nice amber, coming in around 2700k in color temperature and should perform very well in poor weather conditions but does pay an output tax in overall output.

    The original post was updated with an amber fog section.
     
  7. Aug 18, 2018 at 11:55 PM
    #187
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Have a 2005-2011 Tacoma and looking to run amber LED fogs but no product exists to do so? KC G4s only fit 2012+ trucks, and the pod brackets for 2005-2011 fog pods will not allow fitment of pod covers to run amber.

    Modify the pod brackets to work.

    Barely enough room for the pod, not enough additional clearance for covers.
    oht0i80kSC2m9uTgeYw8JQ.jpg

    Covers do not fit.
    fullsizeoutput_d09.jpg

    Approximation of material that needs to be removed.
    fullsizeoutput_d08.jpg

    I always promote very high quality well built products. Rago actually built their light mounts out of cold rolled USA steel, these things are built well enough to be suitable as armor. Who builds light mounts out of hard cold rolled steel?! Using the highest powered Dremel model available, I picked up a 5 pack of extra metal cutting Dremel discs for the task. Cutting the mounts consumed 4 cutting discs.
    fullsizeoutput_d11.jpg

    Raw test fit before finishing work.
    b%RIR6MhQzeIMDl9aEGw1Q.jpg

    Rough edges filed down, raw edges hand painted with anti-rust paint, assemblies resprayed in antirust paint for uniform appearance.
    fullsizeoutput_d0a.jpg

    Done.
    253995B7-8648-4D38-98E0-46DEA58101DE.jpg
     
    Last edited: Aug 20, 2018
  8. Aug 19, 2018 at 1:41 AM
    #188
    Hayrider

    Hayrider Over the hill & going down fast

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    Hmm...
    That silver can on your work bench must be holding water to cool the metal after cutting & grinding?... :rimshot:
    I will take a pair for our 2015 or should I just go with the Baja Designs that supposedly bolt up to the 2012 plus? :notsure:

    Hay
     
  9. Aug 19, 2018 at 1:45 AM
    #189
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Silver can is just water for refreshment, real beer is served with dinner.

    Don't go BD if you actually want to run your pods on the street.
     
  10. Aug 19, 2018 at 1:48 AM
    #190
    Hayrider

    Hayrider Over the hill & going down fast

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    "Silver can is just water for refreshment, real cold beer is served with dinner.

    Don't go BD if you actually want to run your pods on the street."

    I fixed your statement‼️
     
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  11. Aug 19, 2018 at 5:51 AM
    #191
    Mtn Mike

    Mtn Mike Well-Known Member

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    Thanks for another great thread. I'm surprised that there's been no mention of the OEM Lexus LED fog lights which are a direct swap into our trucks.

    They were inexpensive and the swap took only 5 minutes per side. They've got a nice cutoff and wide beam. So far I've been happy with them but I suspect they don't have quite as much effective output of the Rigids or G4s.
     
    Last edited: Aug 19, 2018
  12. Aug 19, 2018 at 8:58 AM
    #192
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    That is another option that was not covered. Being OEM I’d anticipate them having comparable output to the TRD Pro OEM LED fogs. I’m happy to test them and return them if someone wanted to send some my way.
     
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  13. Aug 19, 2018 at 9:14 AM
    #193
    Mtn Mike

    Mtn Mike Well-Known Member

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    I'd be happy to loan you mine for a few weeks. I just need to find time to get them off the truck and package them up to mail. PM me your shipping info.
     
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  14. Aug 19, 2018 at 10:20 AM
    #194
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    PM sent, thanks! It would be a good addition to the thread.
     
  15. Aug 19, 2018 at 10:22 AM
    #195
    ovrlndkull

    ovrlndkull STUKASFK-HC4LIFE

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    @crashnburn80 In your summary you mention the Rigids being the most expensive or highest budget option at this time I can find the rigids for cheaper than the KC G4.
    Thanks for the testing on the amber covers that was really informative.
     
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  16. Aug 19, 2018 at 10:44 AM
    #196
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    That was taking into account the adapter to plates required to run them in the factory bumper, which the G4s do not require. But even that pricing can vary, it is easier to find deals on the Rigids than it is the KCs for sure.
     
    Last edited: Aug 19, 2018
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  17. Aug 19, 2018 at 11:14 AM
    #197
    ovrlndkull

    ovrlndkull STUKASFK-HC4LIFE

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    Got ya! Yeah thats a good point is some of those adapters will make them just as or more expensive than the g4
     
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  18. Aug 20, 2018 at 4:55 AM
    #198
    Too Stroked

    Too Stroked Well-Known Member

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    As usual, one hell of a down-to-earth, scientific look at a subject with lots of misinformation attached to it. I have several friends who swear that amber actually increases the amount of usable light on the ground. As your Light Meter readings show, that's just not the case. Of course now the same friends are playing the "wavelength" card and saying that although the meter shows less light, the fact that it's a different color actually makes it easier for the eyes to see. Although I can buy some of that argument, the reduced light output more than makes up for it.

    I'll leave my clear KC fogs just the way they are and keep the amber in my overhead warning lights where it's required by law here.

    Keep up the good work!
     
    Last edited: Aug 20, 2018
  19. Aug 20, 2018 at 5:20 AM
    #199
    Mtn Mike

    Mtn Mike Well-Known Member

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    Just because LEDs don't produce warmer temps efficiently doesn't mean they aren't desirable. LED technology may not favor warmer color temperatures, but amber-ish wavelengths do actually have some advantages as he points out earlier in the thread. The point, I think, was that most filters are inefficient and inherently reduce light transmission.
     
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  20. Aug 20, 2018 at 7:20 AM
    #200
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    In this case it is the amber filters are highly inefficient. It would be very interesting to see how they compare to the actual amber light LED source of the Amber KC G4s.
     
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