I finally changed out the 7" round sealed beam lights on the tow rig to h4 lights (bulbs and housing)
These lights have a nice sharp cut-off like other modern lights...
What I can't figure out is how to adjust them using the 25 ft wall method.
I found one place on the 'net (and we know the 'net is always right) that you get the cut-off to be 2" lower than the center line height of the bulb @ 25 feet. The same page said if your headlight is 39"+ off the ground that you go by 4" @ 25 feet. The Centerline height of the bulb in the Van is 40"
Since I'm not used to sharp cut-off lights I figured I'd ask.. "How far out 'should' the cutoff be?".
When I set it @ 4" drop at 25 ft (on the wall method) The cut-off is out there a few hundred feet if not more (can't measure that far).. but it looks like I'm going to be blinding people..
If I set it to 2" drop I don't even see the cut-off...
Short of me parking the Van (vehicle with the h4 bulbs) and driving the Honda towards it to see if I blind myself, how can I get these set right?...
I'd appreciate any tips/tricks/info on this...
~Mark
These lights have a nice sharp cut-off like other modern lights...
What I can't figure out is how to adjust them using the 25 ft wall method.
I found one place on the 'net (and we know the 'net is always right) that you get the cut-off to be 2" lower than the center line height of the bulb @ 25 feet. The same page said if your headlight is 39"+ off the ground that you go by 4" @ 25 feet. The Centerline height of the bulb in the Van is 40"
Since I'm not used to sharp cut-off lights I figured I'd ask.. "How far out 'should' the cutoff be?".
When I set it @ 4" drop at 25 ft (on the wall method) The cut-off is out there a few hundred feet if not more (can't measure that far).. but it looks like I'm going to be blinding people..
If I set it to 2" drop I don't even see the cut-off...
Short of me parking the Van (vehicle with the h4 bulbs) and driving the Honda towards it to see if I blind myself, how can I get these set right?...
I'd appreciate any tips/tricks/info on this...
~Mark