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Offline Bill10

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #10 on: September 20, 2015, 02:51:32 PM »
Perhaps someone(s) can look at this and help me figure out what may be creating these unusual dispersion patterns. Here’s what I’m seeing (H7 stock lighting provided for comparo):

1.   The H4 Low Beams look like they contain both an element of low beam and an element of high beam.
2.   The H4 High Beams are totally wonky on both sides, and together; too widely dispersed.

Light dispersion of H7 (top) and H4 with mod (bottom):


Comparo of the H4 (Mod) and H7 (Stock) Bulbs:


H4 Watts: 60 Watts in High Beam/55 Watts in Low
H7 Watts: 55 Watts

Offline Bladerunner929

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #11 on: September 20, 2015, 06:06:28 PM »
I originally commented the reflector might cause issues with this mod and the results look to support this. My original concern was primarily whether the low/high would be supported on both sides but the variance in filament position look to be impacting the output pattern based on your boards. The reflector build/design is obviously based on the H7 specs the H4 filament position, alignment and internal foil plates will all impact the relector return/output.  :notsure:

Offline gharshman

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #12 on: September 20, 2015, 06:33:52 PM »
Yup, the bulb is so close to the reflectors than the small difference in filament position is having large impact on the reflected light.
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Offline Benchmark

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #13 on: September 20, 2015, 06:35:33 PM »
*Originally Posted by Bladerunner929 [+]
I originally commented the reflector might cause issues with this mod and the results look to support this. My original concern was primarily whether the low/high would be supported on both sides but the variance in filament position look to be impacting the output pattern based on your boards. The reflector build/design is obviously based on the H7 specs the H4 filament position, alignment and internal foil plates will all impact the relector return/output.  :notsure:

I too once suggested in a previous thread that each lamp with the standard H7 bulb would produce a different beam pattern for dip and main which the first pictures support.
The lamps rely upon the reflector to create the beam pattern so if the filament emitting the light is at a different focal point then the beam patterns will change.

Offline Bill10

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #14 on: September 20, 2015, 10:37:51 PM »
*Originally Posted by gharshman [+]
Yup, the bulb is so close to the reflectors than the small difference in filament position is having large impact on the reflected light.

This is clearly what makes the high beams so wonky.

I did some measurements. The stock H7 filament projects 32 mm from the lens housing aperture into the reflector. The H4 high beam projects only 13 mm.

This alone renders the H4 useless for this application.

On a side note, the filaments on the H13 project 32 and 33 mm.
« Last Edit: September 20, 2015, 11:00:51 PM by Bill10 »

Offline Bill10

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #15 on: September 20, 2015, 11:12:19 PM »
*Originally Posted by Bladerunner929 [+]
I originally commented the reflector might cause issues with this mod and the results look to support this. My original concern was primarily whether the low/high would be supported on both sides but the variance in filament position look to be impacting the output pattern based on your boards. The reflector build/design is obviously based on the H7 specs the H4 filament position, alignment and internal foil plates will all impact the relector return/output.  :notsure:

Well, if there was any question whether the right and left reflectors differed, I think we now have the proof. Although not a 100% certain, I don't think there are differences in the foil plates. I think the difference is the bulb angles. It appears that the right bulb is angled down slightly to the angle of the left bulb.

Offline 100milesaway

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #16 on: September 22, 2015, 08:52:06 AM »
Bill.  I am loving this thread, and am fascinated by your work.  And I do hope that you find a solution for better lighting. I am sure that you will eventually come up with a fix that will reward you for all your work.              BUT    just to lighten :whistle: this thread up a touch, I must tell you that none of your work will help me in the slightest, as I never ride in the dark.   :138: :4: :4:.      Good luck with your continued work. :028:
« Last Edit: September 22, 2015, 09:04:00 AM by 100milesaway »
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Offline gharshman

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #17 on: September 22, 2015, 04:23:20 PM »
*Originally Posted by 100milesaway [+]
... I never ride in the dark ...


I love a long, dark, peaceful night ride.  I'm thinking seriously about doing an Iron Butt ride soon (1000 miles in 24 hours).

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Offline Benchmark

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #18 on: September 22, 2015, 05:26:45 PM »
*Originally Posted by gharshman [+]
I'm thinking seriously about doing an Iron Butt ride soon (1000 miles in 24 hours).

Done that twice here in the UK, one the weather was lovely and the other it rained for most of it  :003:

Offline Bill10

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Re: 2015 Versys 1000 LT Headlight Modification
« Reply #19 on: September 23, 2015, 11:35:37 AM »
*Originally Posted by gharshman [+]

I love a long, dark, peaceful night ride.  I'm thinking seriously about doing an Iron Butt ride soon (1000 miles in 24 hours).

I have one butt burner, and one is enough.   :002:

Yesterday I was at the Southernmostpoint in Key West, thinking about a possible four corners run ... ah, someday.

 



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