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MEXICOWANDERER's avatar
Apr 21, 2019

Going To Use 18 watt LED Spotlights To Illuminate Shoulder

I have had it up to my rear-end with the US DOT and how blinding new cars are with their blue high intensity discharge headlights.

Either the cars are leaving the factory with misaligned headlights or the lights themselves are designed by an idiot. Then there are models of new cars that have fog lamps that when oncoming look like 4 headlamps are on high beam.



Only 18 watts and 7" in length.
At 45' distance the hot spot is 13' in diameter
To be aimed at the curb or shoulder.

On my power supply at 13.5 volts, these are 13 watt lamps. Pure white light. No mercury vapor or Wal-Mart parking lot color tones.

They will be mounted below my headlights in elliptical nose openings.

The mounting will have to be reinforced to eliminate shake on rough roads.

CREE lamps same brightness 9-30 volts.

Now we get into trig

Aimed 30 degrees downward and perhaps 30 degrees to starboard can anyone think of a reason how the merged hotspots can reflect (like from a puddle) into the eyes of an oncoming driver? I cannot imagine triangulation that would offend a driver in a lane to the right of me.

A person crawling on the ground might get an unintended flare. The bracework is going to cost a pretty penny and if there is a fly in the ointment I'd rather save the money.

Mexico sometimes has shoulder delineation with paint stripe or reflectors, but it's in the minority.
  • Yep...nothing wrong with a bit more light in darkness to help brighten things up a bit. I added a couple of extra "white" lights to the front of my older MH....helps quite a bit on those very dark roads. On that same subject, and I probably shouldn't mention this, but I love to turn on the roof Spot/Flood Roof light....(yes, I'm careful to turn it off at first sight of on coming traffic) BUT..WOW what a difference it makes in seeing on those dark desert highways with the cool wind in my hair!! :-)
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    First aiming headlights at the factory. though I believe it is done. may not be all that effective as when you start to load up the car the angle of the dangle changes. For example you put your grossly overweight relative in the back seat the lights now aim a tad higher. You put your portable recording studio in the trunk (yes I actually have one of those) the lights aim a bit higher.

    18 Watts of High efficiency LED's is a LOT of light. 3 watts as I recall is what my 1200 lumen flashlight eats. and that's about the same as a 100 watt incandescent lamp.

    Oh that I use 18 watt "fog" lights
  • The new lights bother me as well. People also do not turn off their high beams, even after multiple flashes at them. Its a problem for sure.
  • It is absolutely my old eyes. But younger passengers complain too. Being the LEDS are complete bulbs and housings they should not get trashed because of reflector misalignment.
    I just need to stay on the road at 35 mph.
  • No offense meant, but sometimes it's an older person's eyesight that is the cause of some of the issues with the new headlights. Older eyes just have more problems adjusting quick enough I guess.

    My wife hates the HID and projector bulbs, but I don't mind them as much as she. She has a degree of night blindness and has had for many years.

    Now, all that being said, there are quite a few people out there who think just because an HID or projector bulb will fit in their car they are golden. Some just don't realize that the reflector is not necessarily designed to work well with the lights they install.

    I suppose if the highways are wide enough, knowing where you are in relation to the shoulder as opposed to the center line will work okay.

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