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    Fog Light Color: Solved?

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    • Exage03040
      Exage03040 last edited by Exage03040

      This has raged on forever. Below is a rather impressive test of a few different bulbs across the color spectrum. I like the jig for the longevity tests.

      If you don't want to watch the video. Yellow degrades less lux in fog but color bulbs via filter tend to be weaker. A LED light fails the vibration test before one of the halogens.

      ToT: https://opposite-lock.com/topic/50161/this-or-that-206

      monkeepuzzle 1 Reply Last reply Reply Quote 5
      • Just Jeepin'
        Just Jeepin' last edited by

        Watching, but they don’t measure scatter back the driver, which is a big deal in the fog.

        Jeeps

        Just Jeepin' SamV8 2 Replies Last reply Reply Quote 3
        • Just Jeepin'
          Just Jeepin' @Just Jeepin' last edited by

          @just-jeepin said in Fog Light Color: Solved?:

          Watching, but they don’t measure scatter back the driver, which is a big deal in the fog.

          I suppose the amount lost is a reasonable proxy, though.

          Jeeps

          1 Reply Last reply Reply Quote 0
          • Just Jeepin'
            Just Jeepin' last edited by

            ...and they discuss the impact on the driver later, so nm.

            Jeeps

            1 Reply Last reply Reply Quote 1
            • monkeepuzzle
              monkeepuzzle @Exage03040 last edited by

              @exage03040 PUNCH IT CHEWIE

              alt text

              youtu.be/dQw4w9WgXcQ <-- this used to work and now it doesn't

              1 Reply Last reply Reply Quote 18
              • SamV8
                SamV8 @Just Jeepin' last edited by

                @just-jeepin said in Fog Light Color: Solved?:

                Watching, but they don’t measure scatter back the driver, which is a big deal in the fog.

                yellow is the best legal headlight colour for fog/heavy rain as the long wavelengths can pierce through it whereas the shorter wavelength of blue which is more susceptible to scattering/reflecting back at the driver

                ⬜⬜🟥⬜⬜ ⚫'17 Volvo S60 R-Design 🟠'80 Triumph TR7 V8
                🟥🟥🟥🟥🟥
                ⬜⬜🟥⬜⬜

                Just Jeepin' sn4cktimes 2 Replies Last reply Reply Quote 1
                • Just Jeepin'
                  Just Jeepin' @SamV8 last edited by

                  @samv8 They tackle that in the video and claim that’s not particularly accurate. I agree yellow is better for fog, but that’s apparently not why.

                  Jeeps

                  Exage03040 1 Reply Last reply Reply Quote 2
                  • Exage03040
                    Exage03040 @Just Jeepin' last edited by

                    @just-jeepin said in Fog Light Color: Solved?:

                    They tackle that in the video and claim that’s not particularly accurate. I agree yellow is better for fog, but that’s apparently not why.

                    I'd say it's better to go warmer for forward projection.

                    With scattering (both back at the driver and to those involved in the projection) the warmer more yellow causes less eye fatigue. As long as they're not heavily compromised by the filter the output seems decent.

                    I wouldn't mind seeing some more tests though as you mentioned with scatter, scatter back and how lux drops based on visible ranges.

                    Also, my front fog lights are basically lane marker lights rather than driving lights and forward projection. It might be better to still run a cooler light as they are low cut-off and short range, so cooler could be brighter and provide better definition?

                    ToT: https://opposite-lock.com/topic/50161/this-or-that-206

                    Just Jeepin' 1 Reply Last reply Reply Quote 0
                    • Just Jeepin'
                      Just Jeepin' @Exage03040 last edited by

                      @exage03040 clearly the answer is to drive around like this, but every light is a different color and you can control them all individually.

                      alt text

                      Jeeps

                      1 Reply Last reply Reply Quote 2
                      • WasGTIthenGTOthenNOVAthenGTInowA4
                        WasGTIthenGTOthenNOVAthenGTInowA4 last edited by

                        I'm of the opinion that foglights should match the color of the headlights.
                        No exceptions.

                        "What are you gonna do, stab me?"

                        ItalianJobR53 SamV8 2 Replies Last reply Reply Quote 2
                        • ItalianJobR53
                          ItalianJobR53 @WasGTIthenGTOthenNOVAthenGTInowA4 last edited by

                          @wasgtithengtothennovanowbacktogti said in Fog Light Color: Solved?:

                          I'm of the opinion that foglights should match the color of the headlights.
                          No exceptions.

                          WRONG

                          04 Mini Cooper S
                          02 Corvette Z06
                          99 Audi A4
                          08 Lexus LS460

                          WasGTIthenGTOthenNOVAthenGTInowA4 1 Reply Last reply Reply Quote 4
                          • WasGTIthenGTOthenNOVAthenGTInowA4
                            WasGTIthenGTOthenNOVAthenGTInowA4 @ItalianJobR53 last edited by

                            @italianjobr53 Well yes, but no.

                            "What are you gonna do, stab me?"

                            ItalianJobR53 1 Reply Last reply Reply Quote 0
                            • SamV8
                              SamV8 @WasGTIthenGTOthenNOVAthenGTInowA4 last edited by

                              @wasgtithengtothennovanowbacktogti

                              white headlights for daytime visibility, yellow for better vision in heavy rain/foggy

                              (I haven't watched that particular video but experienced that yellow is better in those conditions for me)

                              ⬜⬜🟥⬜⬜ ⚫'17 Volvo S60 R-Design 🟠'80 Triumph TR7 V8
                              🟥🟥🟥🟥🟥
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                              WasGTIthenGTOthenNOVAthenGTInowA4 1 Reply Last reply Reply Quote 1
                              • WasGTIthenGTOthenNOVAthenGTInowA4
                                WasGTIthenGTOthenNOVAthenGTInowA4 @SamV8 last edited by

                                @samv8 I mean, if you're in a race, I guess it would matter, but for every day driving, wouldn't you just slow down to a point where you can safely see where you're going?

                                I'm no expert, so I could be wrong, but would a light color or warmth really make that much of a difference in that scenerio?

                                "What are you gonna do, stab me?"

                                Just Jeepin' 1 Reply Last reply Reply Quote 1
                                • sn4cktimes
                                  sn4cktimes @SamV8 last edited by

                                  @samv8 said in Fog Light Color: Solved?:

                                  @just-jeepin said in Fog Light Color: Solved?:

                                  Watching, but they don’t measure scatter back the driver, which is a big deal in the fog.

                                  yellow is the best legal headlight colour for fog/heavy rain as the long wavelengths can pierce through it whereas the shorter wavelength of blue which is more susceptible to scattering/reflecting back at the driver

                                  I know that red on the front would be highly illegal, but I suppose with that logic SHOULD work better than yellow. So if you could go a little less bright yellow and more toward orange-ish that would be as good as one could get?

                                  '84 Dodge Rampage, '88 AMC Eagle, '15 Husky FE350S -Oppo Never Dies!

                                  SamV8 1 Reply Last reply Reply Quote 1
                                  • ItalianJobR53
                                    ItalianJobR53 @WasGTIthenGTOthenNOVAthenGTInowA4 last edited by

                                    @wasgtithengtothennovanowbacktogti said in Fog Light Color: Solved?:

                                    @italianjobr53 Well yes, but no.

                                    Yes but yes
                                    20200909_181358.jpg

                                    04 Mini Cooper S
                                    02 Corvette Z06
                                    99 Audi A4
                                    08 Lexus LS460

                                    1 Reply Last reply Reply Quote 3
                                    • SamV8
                                      SamV8 @sn4cktimes last edited by

                                      @sn4cktimes the tricky bit would be how close to orange could you get before it'd be deemed illegal

                                      ⬜⬜🟥⬜⬜ ⚫'17 Volvo S60 R-Design 🟠'80 Triumph TR7 V8
                                      🟥🟥🟥🟥🟥
                                      ⬜⬜🟥⬜⬜

                                      sn4cktimes 1 Reply Last reply Reply Quote 0
                                      • Just Jeepin'
                                        Just Jeepin' @WasGTIthenGTOthenNOVAthenGTInowA4 last edited by

                                        @wasgtithengtothennovanowbacktogti said in Fog Light Color: Solved?:

                                        but for every day driving, wouldn't you just slow down to a point where you can safely see where you're going?

                                        I’ve driven through fog so thick that I had to turn my headlights off to not be blinded. I left my parking lights on and that got me through.

                                        Jeeps

                                        1 Reply Last reply Reply Quote 2
                                        • sn4cktimes
                                          sn4cktimes @SamV8 last edited by

                                          @samv8 could try and claim them as daytime running lights, or marker lights perhaps...

                                          '84 Dodge Rampage, '88 AMC Eagle, '15 Husky FE350S -Oppo Never Dies!

                                          1 Reply Last reply Reply Quote 1
                                          • RallyDarkstrike
                                            RallyDarkstrike last edited by RallyDarkstrike

                                            @Exage03040 We get a lot of fog here in Nova Scotia, and I've got Selective Yellow Sylvania halogen bulbs in my fog lights (normal Philips halogens in my reflector headlights)....they really do make a big difference if I have my lights on low beam and the fogs on in bad fog, I can actually see the beam go 'under' the light from headlights and reach out a little farther.

                                            They work great in snowstorms too...

                                            '09 Hyundai Accent | Loves 2-cyl FIATs, old Euro, Eastern Bloc & kei cars!

                                            1 Reply Last reply Reply Quote 2
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