Lighting in snow! - JeepForum.com
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post #1 of 6 Old 09-20-2019, 10:19 PM Thread Starter
AlaskanCelt
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Lighting in snow!

Ok! So...AFTER I installed a 20" light bar, I experienced and read how bad LEDs can be in heavy snowing conditions. You think I would have known...live and learn. Anyone have some good suggestions for snow driving lights? On clear days it's great, but, living in Alaska, you don't always have a choice if you can see 20 feet in front of you. Halogen? Filters? I still plan on having my 20" on my bumper and 2 3" cubes on the corner of my lower windshield for those good days. Really don't feel like hitting bullwinkle and all his other forrest friends.

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post #2 of 6 Old 09-21-2019, 04:53 AM
jay-h
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Snow driving requires TRUE fog lights, the same as fog driving. Everyone and his brother is selling 'fog lights' which are simply a running light.*

A real fog light (Hella 500 fog, for example) has a very sharp upper cutoff. You mount as low as possible, aim the light a little bit down and virtually no light escapes at eye level. Never use a roof or hood mounted light in fog or snow.

* Many places (including some sponsors here) advertise 'LED conversions' for factory fog lights, but these are just generic plug in LED lighting modules. There is no technical reason why an LED can't be a fog light, but the reflector and lens needs to be properly designed.
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post #3 of 6 Old 09-21-2019, 07:02 AM Thread Starter
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Quote:
Originally Posted by jay-h View Post
Snow driving requires TRUE fog lights, the same as fog driving. Everyone and his brother is selling 'fog lights' which are simply a running light.*

A real fog light (Hella 500 fog, for example) has a very sharp upper cutoff. You mount as low as possible, aim the light a little bit down and virtually no light escapes at eye level. Never use a roof or hood mounted light in fog or snow.

* Many places (including some sponsors here) advertise 'LED conversions' for factory fog lights, but these are just generic plug in LED lighting modules. There is no technical reason why an LED can't be a fog light, but the reflector and lens needs to be properly designed.
So I have a jeep jk with stock fogs and I was kinda planning to get a bull bar for light mounting. Is there any reason to upgrade my stocks? If so what could I do? If LEDs are pointless, is there a company that makes after market upgraded fog kits for a wk? And on the other note would it be low enough to put that Hella 500 fogs on the typical mounts on the bull bar?

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post #4 of 6 Old 09-21-2019, 10:30 AM
jay-h
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The thing that makes a fog light useful is the beam pattern. If you have true fog light stock lamps, they are fine as is. Putting a 'LED conversion' into a stock reflector will NOT work properly. The reflectors will not focus properly at all. Buying some ebay China stuff is questionable because a lot of knockoff marketers use 'driving light' and 'fog light' interchangeably.

The last thing you need in snow is lots of light. What you need is well focused light. If you want to move to LED, be sure to get true complete fog beam lights from a reputable supplier.

Generally bar lights are not fog beams (though in theory fog beams could be manufactured in a bar style)
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post #5 of 6 Old 09-22-2019, 08:48 AM
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Snow storms, like fog, is a glare curtain in front of you. There isn't any real way of adding more light without adding more reflected light.



Fog lights should have a low glare lens as well. While nothing will work well when it is snowing heavily, bright, high powered, white light only increases glare. A lower powered set of true fog lights with amber, smoke, or yellow lenses usually work better. They shouldn't be expected to "cut through" the snow flurry, but instead provide light down low to help track the road.


For fog (and the occasional snow) I have found a cheap set of 55W amber rectangular lens fog lights mounted on the bumper and pointed at the fog line works best.



Avoiding Moose, bears, and other large critters in a snow storm can only happen by slowing down.
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post #6 of 6 Old 09-22-2019, 05:40 PM
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Quote:
Originally Posted by jeepdaddy2000 View Post
Snow storms, like fog, is a glare curtain in front of you. There isn't any real way of adding more light without adding more reflected light.



Fog lights should have a low glare lens as well. While nothing will work well when it is snowing heavily, bright, high powered, white light only increases glare. A lower powered set of true fog lights with amber, smoke, or yellow lenses usually work better. They shouldn't be expected to "cut through" the snow flurry, but instead provide light down low to help track the road.


.
Good point. Our eyes have the sharpest contrast and highest sensitivity in the yellow area of the spectrum. This is why many skiers and sharpshooters favor yellow lenses
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