Forum Discussion

larry_cad's avatar
larry_cad
Explorer II
Sep 01, 2021

Looking to add LED driving lights

Last year I added LED headlights to my DP which helped greatly to improve forward lighting. However, it still isn't good enough so I am thinking of adding LED "driving lights", or "fog lights". I am looking at a set on line that will fit into my existing mounts. They come in either 30 degree or 60 degree and I am thinking I should get the 30 degree "spotlight" so that the beam stays more closely focused onto my lane, and perhaps throws light further down the road.

Anyone have any thoughts on this upgrade?

9 Replies

  • rhagfo's avatar
    rhagfo
    Explorer III
    rlw999 wrote:
    Last year I added LED headlights to my DP which helped greatly to improve forward lighting


    Did you replace the entire headlight assembly with factory LED headlights, or did you use cheap aftermarket LED bulbs? If it's the latter, you're probably causing glare for other drivers from the poorly aimed LED's that do shine more light on the road for you, but also shine more light in oncoming drivers eyes.

    Driving lights are similar -- in order to shine far down the road, they are in other drivers eyes, so should be treated as high beams. Since Fog lights are intentionally aimed low, they can be used with low beams.


    The cheap LED are the worst issue on the road at night! They tend to blind oncoming drivers with extremely poorly aimed bright white light.
  • Last year I added LED headlights to my DP which helped greatly to improve forward lighting


    Did you replace the entire headlight assembly with factory LED headlights, or did you use cheap aftermarket LED bulbs? If it's the latter, you're probably causing glare for other drivers from the poorly aimed LED's that do shine more light on the road for you, but also shine more light in oncoming drivers eyes.

    Driving lights are similar -- in order to shine far down the road, they are in other drivers eyes, so should be treated as high beams. Since Fog lights are intentionally aimed low, they can be used with low beams.
  • The Hella fog lights I have on my RV can be flipped but embossed on the lens is "top" which indicates that the beam will be cut off to prevent reflection if installed correctly.
  • I added 'fog lights' to a Jeep I had several years ago. Didn't do well in fog. Talked to a guy in the parts store who had a nice Jeep and he said basically the same thing you just said rgatijnet1. Turns out I did not want fog, I wanted spot beams. I didn't keep the Jeep long enough to ever change them out, but he also told me to buy quality equipment even it was a few bucks higher.
  • I believe that most fog lights, when the top of the beam is cut off, have a wide 60 degree beam. The driving lights would have the 30 degree beam to shine further down the road and would rely on your existing headlights to take care of the near illumination.
  • rgatijnet1 wrote:
    I believe driving lights and fog lights are two different things. Fog lights are usually designed so that the top of the beam is cut off so as not to reflect back from the fog. They usually do not shine too far down the road since the visibility is restricted anyway. Driving lights are designed to shine far down the road when used in high speed highway driving.


    You are correct. The lights currently installed are controlled by a dash switch labeled “Fog Lights” but are truly not fog lights. That’s why I put the name in quotes. What I’m really asking about is the angle of the light.
  • I believe driving lights and fog lights are two different things. Fog lights are usually designed so that the top of the beam is cut off so as not to reflect back from the fog. They usually do not shine too far down the road since the visibility is restricted anyway. Driving lights are designed to shine far down the road when used in high speed highway driving.