Passing lights are NOT
fog nor
cornering /
ditch lights. Passing lights must have cutoff to prevent glare.
Passing lights are
aux low beams.
Read carefully….
------------------------- ( begin rules )
There is no federal regulation of
driving,
passing, or
fog lights; the California Highway Patrol is therefore authorized to establish requirements for such lighting Auxiliary Driving and Passing Lamps.
California Vehicle Code
24402. (1959 to present) (Your state rules may differ - but pay attention to the definitions here)
(a) Any motor vehicle may be equipped with not to exceed two auxiliary
driving lamps mounted on the front at a height of not less than 16 inches nor more than 42 inches.
Driving lamps are lamps designed for
supplementing the upper beam from headlamps and may
not be lighted with the lower beam.
(b) Any motor vehicle may be equipped with not to exceed two auxiliary
passing lamps mounted on the front at a height of not less than 24 inches nor more than 42 inches.
Passing lamps are lamps designed for
supplementing the lower beam from headlamps and may
also be lighted with the upper beam.
24403. ( fog lights follow under a different rule )
(a) A motor vehicle may be equipped with not more than two
foglamps that may be used with, but may
not be used in substitution of, headlamps.
(c) On a motorcycle, the
foglamps authorized under this section shall be mounted on the front at a height of not less than 12 inches nor more than 40 inches and aimed so that when the vehicle is not loaded none of the high-intensity portion of the light to the left of the center of the vehicle projects higher than a level of four inches below the level of the center of the lamp from which it comes, for a distance of 25 feet in front of the vehicle.
---------------------------------------- ( end of the rules )
Wow what a missed opportunity here. All you read about is
driving and
fog lights......
Now what is a
passing light ?? Where are the
passing lights? Who makes and sells
passing lights? -- Nobody? Since 1959?
I use low beams 98% of the time and I can have an
auxiliary low beam to be used
at the same time as the low beam !!!
Like
all the time!
Wake up lighting industry! You missed the boat again!
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So a long time ago when I was riding with halogen lighting,
I added extra led
driving lights on my over the mirror mounts and
fog lights to my forks.
These lights did improve the lighting situation until I upgraded to H4 (F2/F3) LEDs for the main lights.
After which these extra lights did not make much of an improvement and fell into disuse.
They had become merely ornamental lights.
I removed the 4 inch
fog lights from the forks because they kept rattling loose.
150k miles later I noticed that the over the mirror lights were vibrating more than usual.
Upon inspection I found that the over the mirror mounts were only attached to the plastic faring which had cracked.
I glued the mounts with ABS cement and started to look for better lights that were smaller.
Yes there are bigger and brighter
driving lights but I wanted something in the 2 to 3 inch range to keep the weight down.
I decided that I wanted a spot (pencil beam) since the led headlights that I have does a great job lighting up the road.
The very small 2.5 inch
driving lights that I really liked were not bright enough.
They measured 25 watts,
640 lux @ 18 ft, but the shallow reflectors did not capture enough of the light for the spot and the spot was the
wider of the group.
This 2.5 inch light would be a better choice for you if you spent most of your nighttime riding on the beloved curved roads.
But if you ride on the open range straight roads where the deer and antelope play you might want a tighter pencil beam spot.
I found these two 3 inch
driving lights that have a tighter brighter spot, both at 30 watts,
1500 lux @ 18 ft, with deep reflectors which makes a
narrower beam.
The lights on the left was the old setup and the lights on the right are the new improved set up.....
The old 10 watt spot measured
470 lux @ 18 ft.
I had used the Run-D lights as an Alley or ditch lights.
98% of my riding - I can only use the low beam.
So I need to find a
passing light, which according to California rules is an
aux low beam.
A low beam does not have glare.
A
passing light would be a pencil/spot/driving beam that has a
sharp cut off.
No glare.
Most cornering lights on the newer cars have glare so they are
not passing lights.
No one makes such a light or advertises as such!!! Again, what a complete missed opportunity.
I would prefer a reflector design
passing light since they are more efficient.
Some reflectors that I found, that might be a
passing light, have a sloppy cutoff.
But there are some projector aux fog lights that might work, but they are half as bright as my low beam.
I like this one at 17 watts,
850 lux @ 18ft, which I am going to try but, it will take 4 of these to complement the H4 LEDs light level.
I only use the low beam mode with this light. There are other similar lights that are dual color. ---( I do not like yellow light at night, just my preference.)
I am testing with only one on the side of the driving lights. I have a few more other lights on order to test in the future.
So I have stirred the pot, lets see what we can brew up……
Put yer thinking caps on...
Just to be clear I am talking about a
concept not a particular product....
----------------------------------- edit...
example found down at post #20. But do read this thread since there is a lot of information presented here.
3E Passing light
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