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#553760 - 14/01/19 12:26 PM Re: LED headlights [Re: madmax]
Heinz Offline

Talk Morgan Addict

Registered: 07/09/09
Posts: 3719
Loc: Cologne, Germany
Robbie, if you see some youtube test of full LED units they all have a razor sharp horizontal line. A normal reflector could never reach this amount of precision regardles how well the (LED) bulb has been made. But your idea is very plausible, just to limit the lux and not the W. Then a LED bulb could be considered also.

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#553781 - 14/01/19 02:07 PM Re: LED headlights [Re: madmax]
Robbie Mathisen Offline
L - Learner Plates On

Registered: 31/08/17
Posts: 114
Loc: Bergen, Norway
Heinz, agree, full LED units are extremely sharp, surely due to the combination bulb/reflector. So we can agree on putting in a LED bulb in a conventional reflector will give less sharp boundaries. But a conventional halogen bulb in a conventional reflector is not razor sharp either. In other words, is it possible that we will get the same blurry boundaries with LED as with halogen, but at least higher intensity? In other words, something gained, but nothing lost?
Well, well. Being a summertime and mostly daylight driver I will stick to my Osram Nightbreakers untill they die. When that happens, I will reconsider. Given the low mileage on a Mog, it might be a while.
_________________________
Robbie
2004 V6 Roadster
Sherwood green

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#553837 - 14/01/19 07:50 PM Re: LED headlights [Re: madmax]
milligoon Offline
Talk Morgan Addict

Registered: 20/04/14
Posts: 3018
Loc: Dorset, UK
The H4 LED replacements don't recreate the very fine focal point of a H4 filament though. Additionally they have physical surfaces that reflect light in the wrong direction.

For a LED replacement lamp to work the same the actual chip would need to be the same tiny size as the filament at suspended on the same tiny wire.

A filament is 360° along its length a LED isn't.

Should be picked up on an mot or equiv. And a fail. If they could be bothered.
_________________________
Mark - driving
Archie the Old English Sheep Mog...........
2010 Roadster 3.0 V6 (S3) wink

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#553843 - 14/01/19 08:20 PM Re: LED headlights [Re: Robbie Mathisen]
CooperMan Offline

Talk Morgan Regular

Registered: 19/11/15
Posts: 830
Loc: Yorkshire
Originally Posted By Robbie Mathisen
Cooperman, you are about to convince me, in spite of me being happy with the nightbreakers. Any issues with them being legal or not, dazzle etc. as mentioned by others? Were they difficult to mount? Concerning looks, I agree with you. With all respect, I think the complete LED replacements are hideous on a Mog.


Robbie, there seems to be a few contra comments here, my personal experience is that decent quality OE reflectors handle the new LED bulbs fine & without glare

I spent a lot of time comparing brands before finally going for the ones Gill has made, they are well engineered & replicate the exact position and filament length with the internals, there is a grubscrew to fine tune the position of the main 'bulb' part to the backplate, also the internal LEDs are shielded with internal reflector baffle to stop unwanted light leakage
I measured the beam pattern angle and cut-off both before & after against a wall in our work underground car park and it was identical (except brighter & whiter)
If I can find my photos & try & post them
I will be taking the car(s) to an MOT station to have the aim checked for peace of mind, but by eye against the wall the dip to beam setting looks as it was with H4 halogen
_________________________
Jon M

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#553868 - 14/01/19 10:12 PM Re: LED headlights [Re: madmax]
Robbie Mathisen Offline
L - Learner Plates On

Registered: 31/08/17
Posts: 114
Loc: Bergen, Norway
Cooperman, seems that you take your stuff seriously, both doing your reseach, testing/measuring the result and writing a good answer. Thanks.
_________________________
Robbie
2004 V6 Roadster
Sherwood green

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#553869 - 14/01/19 10:17 PM Re: LED headlights [Re: madmax]
Robbie Mathisen Offline
L - Learner Plates On

Registered: 31/08/17
Posts: 114
Loc: Bergen, Norway
Cooperman, seems that you take your stuff seriously, both doing your reseach, testing/measuring the result and writing a good answer. Thanks.
_________________________
Robbie
2004 V6 Roadster
Sherwood green

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#553926 - 15/01/19 10:04 AM Re: LED headlights [Re: Heinz]
Richard Wood Offline
Talk Morgan Enthusiast

Registered: 03/02/16
Posts: 1626
Loc: East Harling, Norfolk UK
Originally Posted By Heinz
I like the look of the complete LED units also not so much in the Morgan. Personally I am not "light hungry". Until about 2 years ago I was always satisfied with my H4 light.

But cars are getting brighter and brighter, many have LED, not a few have set it wrong and dazzle, you sit quite deep in the Morgan. And if I come in the spring and autumn into the deep twilight, and it is also still a little wet, then I see nothing more in the oncoming traffic with my H4 candles.
That's why a LED headlight in the Morgan is important to me for safety reasons,

And dear people, keep your hands off these H4 LED spare bulbs. The light is so bright that the reflector technology of the H4 headlights is not suitable for it. This is no fun, you bring your oncoming traffic into life-threatening situations.


Agree with all your comments Heinz. In my own case a single 25 mile journey in full darkness and drizzle convinced me lighting had to be improved to reduce the contrast between my own pool of light on dipped beam and that of oncoming cars, not helped by low seating position of course.

Regarding looks well not traditional I agree, but have a look at this factory ARP4. I think I could live with one wink



It's my opinion for reasons Heinz offers that even if you use your Mog just once a year at night then upgrading lighting with dedicated, legal LED headlamps, using projector optics on dip, is justified. Ditto proper DRL's given the low profile of Trad's.

I note that a limited number of high end cars employ laser headlamps now with an RR version providing an illuminated path over 600 metres ahead! Where will it all end innocent


Edited by Richard Wood (15/01/19 10:09 AM)
_________________________
Richard

2018 Roadster - Red/Magnolia - "Morton"
1967 Land Rover series 2a SWB
1960 Velocette Venom

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#553934 - 15/01/19 11:36 AM Re: LED headlights [Re: Richard Wood]
Burgundymog Offline

Talk Morgan Addict

Registered: 11/05/14
Posts: 3460
Loc: Essex
Originally Posted By Richard Wood


I note that a limited number of high end cars employ laser headlamps now with an RR version providing an illuminated path over 600 metres ahead! Where will it all end innocent


Another let down by the EU. Here is a classic situation where they could have done something useful for a change. The original 60 watt limit was to prevent dazzle, manufacturers today led by German manufacturers mainly have got around the legislation by fitting high power low wattage lights. Time for change. stirpot
_________________________
Keith
2013 narrow bodied + 4 Ruby. Wolf performance Re-map suspension mods and K&N cone filter.

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#553943 - 15/01/19 01:21 PM Re: LED headlights [Re: CooperMan]
CooperMan Offline

Talk Morgan Regular

Registered: 19/11/15
Posts: 830
Loc: Yorkshire
Originally Posted By CooperMan
Originally Posted By Robbie Mathisen
Cooperman, you are about to convince me, in spite of me being happy with the nightbreakers. Any issues with them being legal or not, dazzle etc. as mentioned by others? Were they difficult to mount? Concerning looks, I agree with you. With all respect, I think the complete LED replacements are hideous on a Mog.


Robbie, there seems to be a few contra comments here, my personal experience is that decent quality OE reflectors handle the new LED bulbs fine & without glare

I spent a lot of time comparing brands before finally going for the ones Gill has made, they are well engineered & replicate the exact position and filament length with the internals, there is a grubscrew to fine tune the position of the main 'bulb' part to the backplate, also the internal LEDs are shielded with internal reflector baffle to stop unwanted light leakage
I measured the beam pattern angle and cut-off both before & after against a wall in our work underground car park and it was identical (except brighter & whiter)
If I can find my photos & try & post them
I will be taking the car(s) to an MOT station to have the aim checked for peace of mind, but by eye against the wall the dip to beam setting looks as it was with H4 halogen


So the photos as promised...

Before on the Roadster



With left changed only, LED still has good cut-off and beam shape as before



And not quite as scientific but on the Classic Mini (same headlamps as a Mog) left H4 halogen right LED, both dipped

_________________________
Jon M

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#553944 - 15/01/19 01:35 PM Re: LED headlights [Re: madmax]
CooperMan Offline

Talk Morgan Regular

Registered: 19/11/15
Posts: 830
Loc: Yorkshire
And finally some full frontal LED Mog porn...

_________________________
Jon M

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