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me@td5.org



Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

2000 Defender 90 Td5 HT Epsom Green
This argument is a great example of where the motoring press is letting us down. Their reviews are based on stand alone impressions if a product and the only thing they ever get around to do comparative testing seems to be workshop tools

A sceptic would say this is to protect advertising revenue, but also to continue the steady flow of free stuff to the journos to fit to their trucks.

A direct comparison would be easy, it's been done a hundred times with LED bike lights and there is no shortage of products to test.

After that I'd like to see dyno tests of the different remaps, flow bench tests on "performance" parts' then thermal efficiency tests on intercoolers. www.td5.org
Post #367420 27th Oct 2014 8:08am
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Venomator



Member Since: 25 Aug 2014
Location: Peterborough
Posts: 2087

United Kingdom 
a13x wrote:
And with that note, one should state where their knowledge is and why there are to be seen as the greater knowledge base compared to the average person.

If you are that knowledgeable in this field I would be keen to learn more. Eric's test is a good one and while it cannot calculate accurate and statistical results, it goes some way to paint a picture that is different to what is trying to be portrayed here.

All that said, I do not like the look of the Noldens and so are not for me.

Not sure there a roolz suggesting "one should state where their knowledge is"... Whistle

But, for the record, I have not and never would presume to suggest my knowledge would "be seen as the greater knowledge base compared to the average person"!

Like you, I can only assume, I am as unaware of people's backgrounds, especially when partaking of this here interweb thingy, as anyone else, so it would be rather foolish to under-estimate other's knowledge or experience... Thumbs Up

Eric's test is fundamentally flawed, in that it has at least one basic element that is notoriously unreliable, the human eye - particularly its scotopic acuity (night vision). This is especially so when any such comparison is attempted with varying colour temperatures, as I noted in my earlier response, and with varying levels of ambient lighting, which affects the human eyes transition from photopic to scotopic (day to dark) sensibilities.

Any such attempt at a comparison, which by the way is truly comparing apples and pears, whilst it might satisfy an individual's quest to justify one purchase, or another, is hardly a test of the hard and fast data provided by a reputable manufacturer and should only be taken at face value for their own immediate needs... Cool

By the way, in partial answer to your first point, any and all of the information I have imparted is freely available to one and all, although some of its interpretation is a matter for the individual... Wink

But, to borrow, in part, a quote from another D2.net member...

Without boring the knuts off you all, I have a modicum of experience in such things... Mr. Green
 Rog... Mr. Green
The GREEN One...


MY2016 Urban Truck Build Thread - http://www.defender2.net/forum/topic40548....al[/color]
Post #367511 27th Oct 2014 3:25pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8578

United Kingdom 
JWSpeaker Evo 2 measured light output is 1150 lumens

Nolden Bi Led measured output is 1700 lumens

Now a lumen is a standard SI unit based on the visible light part of the electro magnetic spectrum.

Now in the UK photo metric devices are calibrated against devices in NPL (National Physical Laboratory). Now I am assuming that Nolden and Speaker use devices calibrated against their own national standards. They are both respected companies in developed countries and I have no reason to doubt their figures.

When I was involved in testing materials we had to be able to provide a paper trail for the calibration of equipment which even included a trip to the NEL (National Engineering Laboratory) to get large load cells calibrated! Both Speaker and Nolden work with major car companies and these companies will want to ensure that the information given to them is accurate and they will have their own experts to ensure that the information given to them is accurate.

As an aside the standard kilogram is changing its mass by up to 50 micrograms per 100 years. However I will not worry about that when I go to buy a kilo of sugar Razz


So I will need some serious factual information before I start to disbelieve the measured light output given by JWSpeaker or Noldens.

Now if you were to talk about the light output figures of various LED light bars coming out of various Chinese then yes I would question those figures as they rely on calculated figures assuming perfect conditions and assuming the best quality LEDs


Brendan
Post #367826 28th Oct 2014 8:00pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8578

United Kingdom 
Now if you go on Microcat Live

Defender(A2) 2007-

Special Vehicles Options

005 Vehicle Options

Defender Halo LE. 005.090

You will find the Nolden Bi Led Headlights with LR 065432. However most LR dealers parts department are unaware of this and will not be able to quote a price on the Headlights.

Now wait for the jokes about it not being LR as it does not leak Razz


Brendan
Post #368313 30th Oct 2014 6:43pm
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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
This is interesting. Should have looked at this German forum earlier, which could have avoided much of the discussion in this thread.
A German site sponsor with a high reputation on the forum here and who are importers/distributors of both Nolden and Speaker, already end of October posted on the German Offroad forum a topic of the new EVO2, and most interestingly, added a pictures comparison of the Nolden versus the new EVO2 taken in what can only be described as representive conditions.
I can only conclude that it supports my statements about the lumen numbers flying around here being useless until they are given at a proven comparable common denominator.
The thread is in German of course, and while the German supplier makes some clear statements about what is the new standard as to LED headlamps, for those not reading German, the pictures comparison alone is quite interesting.
Eric
http://www.offroad-forum.de/viewtopic.php?...mp;start=0 You never actually own a Defender. You merely look after it for the next generation.
http://youtu.be/yVRlSsJwD0o
https://youtu.be/vmPr3oTHndg
https://www.youtube.com/watch?v=_GtzTT9Pdl0
https://www.youtube.com/watch?v=ABqKPz28e6A
https://www.youtube.com/watch?v=rLZ49Jce_n0
https://www.youtube.com/watch?v=XvAsz_ilQYU
https://www.youtube.com/watch?v=K8tMHiX9lSw
https://m.youtube.com/watch?v=dxwjPuHIV7I
https://vimeo.com/201482507
https://www.youtube.com/watch?v=ZSixqL0iyHw
Post #384410 3rd Jan 2015 9:51am
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Macpaul



Member Since: 26 Mar 2013
Location: SW Surrey
Posts: 439

United Kingdom 2013 Defender 110 Puma 2.2 USW Loire Blue
I do think that's interesting and people will draw their own conclusions from what look to me, like directly comparable photos.

What they also seem to confirm is the very poor additional light offered by both units on main beam.

For headlights costing as much as they do, I think this is a significant shortcoming.

I've got Speaker Evos and you really have to have secondary lights to back them up on high, as you would also with Noldens by the look of it. 2003 Td5 110 Hardtop
Now a 2013 110 USW too.
Post #384416 3rd Jan 2015 10:24am
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686

Have to say as I have had fitted, both makes of head light is that the Noldens high beam is actually a high beam with a decent spread of light and not the letterbox spread of light of the Speakers. Both head lights are excellent in low beam but the Noldens high beam wins hands down for me and so for that reason amongst others, the Noldens are staying fitted. JMTW Thumbs Up

Noldens.
Low Beam.


Click image to enlarge


High Beam.


Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
Post #384523 3rd Jan 2015 5:45pm
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Macpaul



Member Since: 26 Mar 2013
Location: SW Surrey
Posts: 439

United Kingdom 2013 Defender 110 Puma 2.2 USW Loire Blue
Fair enough but if I remember correctly from another thread, you have added a significant lightbar to help out the high beam?

Which I have to say looked Hugely effective. IIRC etc. 2003 Td5 110 Hardtop
Now a 2013 110 USW too.
Post #384536 3rd Jan 2015 6:14pm
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Litch



Member Since: 10 Mar 2013
Location: Oxfordshire
Posts: 760

England 
Macpaul wrote:
I do think that's interesting and people will draw their own conclusions from what look to me, like directly comparable photos.

What they also seem to confirm is the very poor additional light offered by both units on main beam.

For headlights costing as much as they do, I think this is a significant shortcoming.

I've got Speaker Evos and you really have to have secondary lights to back them up on high, as you would also with Noldens by the look of it.


I fully agree with the above statement regarding High Beam, certainly with respect to the Noldens.

I was initially very disappointed with the Noldens when I first fitted them but after a few months of use I do agree that Dipped Beam is better that what I had before. When it comes to High Beam however they are a real let-down and I am glad that I already had a pair of good quality auxillary spot-lights wired to High Beam (Hella Rallye 3003). ONE LIFE, GET IT!
Post #384548 3rd Jan 2015 6:35pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686

High beam with 20" light bar Thumbs Up


Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
Post #384549 3rd Jan 2015 6:35pm
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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
Lorryman100 wrote:
Have to say as I have had fitted, both makes of head light is that the Noldens high beam is actually a high beam with a decent spread of light and not the letterbox spread of light of the Speakers. Both head lights are excellent in low beam but the Noldens high beam wins hands down for me and so for that reason amongst others, the Noldens are staying fitted. JMTW Thumbs Up


Brian, I believe you only have had fitted the original first generation Speakers, not the EVOs correct? (As I have read from your recent sales thread of your never used EVOs)
So a bit of apples and pears again here, comparing the first generation Speakers with the Nolden high beam production.
I have read quite a few times from different sources that the first gen Speaker light output was not as good as the Nolden, but then we had the EVO, and now we have the EVO2, which reportedly has taken care of the too spotty high beam of the EVO, and now gives more comfort light at high beam too.
In all honesty, the only one who until now can make credible statements about Nolden versus EVO2 is Peter from Naka as per his thread on the German forum. He made a real comparison in identical conditions, and that without using any lumen numbers which cannot be compared as they are given without common denominator.
And I must say, the comparative pictures of Naka look very interesting, and confirm that with every new generation of lights, the manufacturers make another leap in quality and power of the output. Which is a good thing I think. Thumbs Up
Eric You never actually own a Defender. You merely look after it for the next generation.
http://youtu.be/yVRlSsJwD0o
https://youtu.be/vmPr3oTHndg
https://www.youtube.com/watch?v=_GtzTT9Pdl0
https://www.youtube.com/watch?v=ABqKPz28e6A
https://www.youtube.com/watch?v=rLZ49Jce_n0
https://www.youtube.com/watch?v=XvAsz_ilQYU
https://www.youtube.com/watch?v=K8tMHiX9lSw
https://m.youtube.com/watch?v=dxwjPuHIV7I
https://vimeo.com/201482507
https://www.youtube.com/watch?v=ZSixqL0iyHw
Post #384550 3rd Jan 2015 6:35pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686

Eric, hence the JMTW (Just My Tuppence Worth) in the post. Thumbs Up
Post #384552 3rd Jan 2015 6:39pm
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CatherineF



Member Since: 22 Nov 2014
Location: Wiltshire
Posts: 762

United Kingdom 
Must resist the temptation!!!!! It's seats next Smile 2015 Audi Q3 Quattro S Line Plus 184 TDI Stronic
2010 90 SMC Over Land Nero Edition - Santorini Black Metallic (Now Departed)
Post #384553 3rd Jan 2015 6:43pm
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Pickles



Member Since: 26 May 2013
Location: Melbourne
Posts: 3755

Australia 2013 Defender 90 Puma 2.2 CSW Keswick Green
ericvv wrote:
Lorryman100 wrote:
Have to say as I have had fitted, both makes of head light is that the Noldens high beam is actually a high beam with a decent spread of light and not the letterbox spread of light of the Speakers. Both head lights are excellent in low beam but the Noldens high beam wins hands down for me and so for that reason amongst others, the Noldens are staying fitted. JMTW Thumbs Up


Brian, I believe you only have had fitted the original first generation Speakers, not the EVOs correct? (As I have read from your recent sales thread of your never used EVOs)
So a bit of apples and pears again here, comparing the first generation Speakers with the Nolden high beam production.
I have read quite a few times from different sources that the first gen Speaker light output was not as good as the Nolden, but then we had the EVO, and now we have the EVO2, which reportedly has taken care of the too spotty high beam of the EVO, and now gives more comfort light at high beam too.
In all honesty, the only one who until now can make credible statements about Nolden versus EVO2 is Peter from Naka as per his thread on the German forum. He made a real comparison in identical conditions, and that without using any lumen numbers which cannot be compared as they are given without common denominator.
And I must say, the comparative pictures of Naka look very interesting, and confirm that with every new generation of lights, the manufacturers make another leap in quality and power of the output. Which is a good thing I think. Thumbs Up
Eric

G'Day Eric.
So, from the latest articles you've read, what you've seen etc,...which, in your opinion, is the better light?
Pickles.
Post #384629 3rd Jan 2015 9:41pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
I think the only real way is a side by side test , same road , same night , same camera etc etc

i keep thinking about led headlight , to be honest i dont need them as do low mileage , not a lot at night etc , really they would only be another gadget

speakers are out because of how they look

i think noldens would be the ones , but then someone says high beam is not if at all better then standard !!!

my lights are relayed with nightbreakers nd clearglass lenses

so still need convincing !!!

are they 600 odd quid better ?
Post #384631 3rd Jan 2015 9:51pm
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