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Re: Workshop Note: LED Headlamps [Re: DaveW] #665503
03/10/20 09:07 PM
03/10/20 09:07 PM
Joined: Feb 2016
Posts: 5,105
East Harling, Norfolk UK
RichardV6 Offline
Charter Member
RichardV6  Offline
Charter Member

Joined: Feb 2016
Posts: 5,105
East Harling, Norfolk UK
Originally Posted by DaveW
Don't take too much from the headlamp glare in those pictures, because the camera doesn't show up the definition.

The Cibie units on my Plus 4 provide the sharpest dipped beam cut off. The Wipacs now on my Roadster are not quite so good as the Cibies, but more defined than the Halo units.

I appreciate the difficulties in getting a fair and representative photo to demonstrate headlamp performance but accepting this here is mine for comparison, taken when evaluating my dedicated "E" marked LED headlamps from Powerful UK, the Land Rover lighting specialists.

[Linked Image]

Note the defined cutoff and lack of splatter and spill above, far superior to the high power halogens on the left in both intensity and width but more importantly in reduced splatter. Also note the contrast and how dark the bricks are above and to the right of the LED's cutoff, light that would otherwise have a component to add glare to an oncoming driver.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1945 Moto Guzzi Airone
Re: Workshop Note: LED Headlamps [Re: DaveW] #667873
19/10/20 01:22 PM
19/10/20 01:22 PM
Joined: Sep 2016
Posts: 86
Kent, England
Arthur S Bell Offline
Just Getting Started
Arthur S Bell  Offline
Just Getting Started

Joined: Sep 2016
Posts: 86
Kent, England
[Linked Image]

I fitted these in to my +4 (1997) last week. They are a straight swap-out for the filament H4 bulbs, &, WOW, what an improvement........🤷🏼‍♂️👍.

I am definitely going to be more comfortable driving in the dark in Morgie now.

Time to get some LEDs for the rear side/stop lamps, for sure!


ArthurSBell
N44MOG Rolls Royce Green +4
M22ASB Grey Renault Megane Cabriolet
M10SAB White Fiat 500
Re: Workshop Note: LED Headlamps [Re: DaveW] #667889
19/10/20 02:50 PM
19/10/20 02:50 PM
Joined: Jul 2007
Posts: 22,628
Suffolk
John V6 Offline
Brooklands Register contact
John V6  Offline
Brooklands Register contact
Member of the Inner Circle

Joined: Jul 2007
Posts: 22,628
Suffolk
Wow, I think from memory H4s are 750 lumens, the LEDs I fitted are 6000 so 16000 must be very very bright.
Don't other drivers at night get annoyed with the new bulbs?

I notice also the heat sink on the bulb is inside the headlamp shell. I have no idea how hot they get but my heat sink is outside the shell.

Bulbs


JohnV6
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Re: Workshop Note: LED Headlamps [Re: DaveW] #667947
19/10/20 07:24 PM
19/10/20 07:24 PM
Joined: Nov 2015
Posts: 5,105
Northern Capital of Cool
CooperMan Offline
Just barreling along
CooperMan  Offline
Just barreling along
Charter Member

Joined: Nov 2015
Posts: 5,105
Northern Capital of Cool
Be careful out there folks, lot's of dodgy untested stuff on't net, from the happy happy bulb co inc...etc


Jon M
Re: Workshop Note: LED Headlamps [Re: DaveW] #668018
20/10/20 09:18 AM
20/10/20 09:18 AM
Joined: Sep 2016
Posts: 86
Kent, England
Arthur S Bell Offline
Just Getting Started
Arthur S Bell  Offline
Just Getting Started

Joined: Sep 2016
Posts: 86
Kent, England
SORRY - Don’t know how to link to a posting and reply.....

The beam from Morgie’s headlights is exactly as it should be, but, now, the light is white - not yellowish. The top of the beam profile is flat and, from the short journey that I have made so far, none of the oncoming traffic has flashed/dipped/etc. In fact, the illumination to the offside is clearly below the bonnet level of anything coming towards me.

Additionally, during daylight hours, the original headlamps remain and Morgie continues to look as built.

One happy motorist🤗👍!


ArthurSBell
N44MOG Rolls Royce Green +4
M22ASB Grey Renault Megane Cabriolet
M10SAB White Fiat 500
Re: Workshop Note: LED Headlamps [Re: DaveW] #668030
20/10/20 10:24 AM
20/10/20 10:24 AM
Joined: Jun 2015
Posts: 1,191
North Somerset, UK
Deejay Online content
Has a lot to Say!
Deejay  Online Content
Has a lot to Say!

Joined: Jun 2015
Posts: 1,191
North Somerset, UK
A very interesting article on LED headlights can be found on www.autobulbsdirect.co.uk. Click on “News”, then select page 2 and scroll down to select the article “Are LED Headlight bulbs the brightest”.
Some very interesting information which is worth reading by anyone considering LED upgrade.
It also reminded me of my biking days some many years ago when we all started putting our headlights on in the daytime. I then attended a police “ride to arrive course” and the advice was not to do that after all, as it impairs judgement of speed & distance by anyone seeing you coming. That seems to be backed up in the above article. When we see a bright light, we automatically close down the iris and in turn alter our perspective of the approaching vehicle.
So maybe bright ain’t always right??
I am sticking to standard H4.


Doug

2011 +4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
Re: Workshop Note: LED Headlamps [Re: Deejay] #668032
20/10/20 10:41 AM
20/10/20 10:41 AM
Joined: Nov 2018
Posts: 4,522
Northants, UK
TBM Offline
Part of the Furniture
TBM  Offline
Part of the Furniture

Joined: Nov 2018
Posts: 4,522
Northants, UK
Originally Posted by Deejay
So maybe bright ain’t always right??
I am sticking to standard H4.


I tend to agree. The brighter the bulbs, the more difficult it makes for oncoming traffic to see where they're going, so in turn, they try and fit brighter bulbs etc etc.......

Never ride my bike with a headlight, unless it's dark. Found the bobbing forks make people think you're flashing them out of junctions with disasterous results.

If I can't see very well at night, I reduce my speed until it's not a problem.


1972 4/4 4 seater - 3G Morganeer
Too many ratty motorbikes
Re: Workshop Note: LED Headlamps [Re: DaveW] #668033
20/10/20 10:43 AM
20/10/20 10:43 AM
Joined: Oct 2019
Posts: 3,095
Aberdeenshire
Image Offline
Talk Morgan Addict
Image  Offline
Talk Morgan Addict

Joined: Oct 2019
Posts: 3,095
Aberdeenshire
Years back in the America, one of the States (can't remember which, but Utah rings a bell) trialled compulsory daylight headlights for motorcycles and at the end of the trial found fatalities had risen ... at the time it was put down to 'target fixation' as the bright light approached oncoming traffic down the long stratight roads

K

Re: Workshop Note: LED Headlamps [Re: Deejay] #668057
20/10/20 01:29 PM
20/10/20 01:29 PM
Joined: Apr 2019
Posts: 878
Lancashire
RobCol Offline
Talk Morgan Regular
RobCol  Offline
Talk Morgan Regular

Joined: Apr 2019
Posts: 878
Lancashire
Originally Posted by Deejay

It also reminded me of my biking days some many years ago when we all started putting our headlights on in the daytime. I then attended a police “ride to arrive course” and the advice was not to do that after all, as it impairs judgement of speed & distance by anyone seeing you coming. That seems to be backed up in the above article. When we see a bright light, we automatically close down the iris and in turn alter our perspective of the approaching vehicle.
So maybe bright ain’t always right??


I can see (no pun intended!) that judgement of speed & distance of other vehicles would be affected if you were dazzled by bright lights.

It is also difficult to judge speed and distance of other vehicles at night where there aren't any streetlights because you can only see the lights and no background of scenery or buildings to use as reference points for how fast the lights are traveling. But then again you wouldnt drive without lights in the dark even if legal to do so.

So whilst I would agree that having lights on, particularly on a motorbike isnt always beneficial, for most weather and light conditions I would say it is.

Police motorcyclists are different in being very visible because they have white fairings, helmets and Hi Viz decals so maybe that is better in the daytime than having lights on?






Rob

4/4 Sport Grey

Re: Workshop Note: LED Headlamps [Re: DaveW] #668163
21/10/20 06:16 AM
21/10/20 06:16 AM
Joined: Aug 2017
Posts: 447
Bergen, Norway
R
Robbie Mathisen Offline
Learner Plates Off!
Robbie Mathisen  Offline
Learner Plates Off!
R

Joined: Aug 2017
Posts: 447
Bergen, Norway
If you as a motorbike rider (or as a car driver, for that sake) keep your headlights on, you are at least seen and noticed. I agree that a very bright, dazzling light can make it difficult to judge distance, but the point is that I will be aware of the rider - in dawn, dusk, rain, fog, even bright sunlight etc. Just look at an oncoming car - which one will draw your attention first, the one with lights on or the one without? So here here all motorized vehicles are obliged to have their lights lit, 24/7. Works well, no increase in accidents after that law change was introduced. I do remember the discussion when it was to be introduced, smaller vehicles would "drown in an ocean of light" etc. The experience showed the contrary, surrounding traffic was more easily seen, on two or four wheels. Bright colours on bike and clothing is good, but a lit headlamp is much better for getting noticed. And light use can be regulated by law, vehicle and clothing colours hardly so.


Robbie the Norseman
2004 V6 Roadster
Sherwood green
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