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Old 21st October 2016, 19:52   #211
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Default Re: Auxiliary Lamps

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Originally Posted by condor View Post
Not likely. That is HID / Halogen territory. LED's would mostly be at 6000k & above.
The combination is unlikely or uncommon but LEDs are are available in all colour temperatures, not just 6500k and above. You get 2700-3000k, 4200k, 5500k quite commonly in white along with 6500k.
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Old 21st October 2016, 19:56   #212
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Default Re: Auxiliary Lamps

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The combination is unlikely or uncommon but LEDs are are available in all colour temperatures, not just 6500k and above. You get 2700-3000k, 4200k, 5500k quite commonly in white along with 6500k.
Techinically it is possible. I was refering to car lighting .. havent seen at 4300k. If there is a good LED set up at 4300k, do post the links .. would ike to try it out
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Old 21st October 2016, 20:01   #213
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Default Re: Auxiliary Lamps

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Techinically it is possible. I was refering to car lighting .. havent seen at 4300k. If there is a good LED set up at 4300k, do post the links .. would ike to try it out
Are you talking about bulb replacements, OEM LED headlights or Auxillary lamps as being discussed ?

LED bulbs replacements are mostly rubbish anyways so avoid them, OEM LED headlights I have no clue about. But Aux LED lights are available in 3000K and 4200K quite easily. 6500K is just the most common and popular colour I guess because of the 'cool bluish white looks' and also probably they are cheaper to manufacture.
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Old 22nd October 2016, 06:29   #214
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Default Re: Auxiliary Lamps

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Are these Combination LED light bars available in 3000k for the spread beam and 4200k for the spot beam ?
Almost all led bars are 6500K. If you want the change the temperature add an external tint film.

One layer of the film will bring the temperature down to 4500 or so. If you want 3000K buy an Amber plastic cover for the portion you want. Or apply 2 layers of the film.

This is a photo of my cube with 1 layer of film. The film roll is in the background.
Auxiliary Lamps-img_20161022_061708.jpg

I have also applied one layer of the film to my Grand Vitara's fog lamp lens. So I get a light output closer to 2700K that the normal 3300K
The following shows a night time shot of the fog lamp lighting of 2 GVs. The one on the right is with the tint applied:-
Auxiliary Lamps-comparo-fogs.jpg

And a daytime frontal shot:-
Auxiliary Lamps-2-gvscomp.jpg
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Old 23rd October 2016, 21:58   #215
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Default Re: Auxiliary Lamps

I think they are available with 4200K LEDs rather than having a tint. 6500K is just the most common colour for white light in general, for example our tubelights 90% are 6500k or Cool Daylight. I guess its similar with LEDs, also cheaper to produce since white LEDs are blue LEDS with a Yellow phosphor, so it might be cheaper to produce 6500K since they require less phosphor
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Old 23rd October 2016, 22:45   #216
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Originally Posted by sridhar-v View Post

Almost ---snip----:-

And a daytime frontal shot:-
Is this actually effective? I have a 120w bar on my car, but I find it washed out occasionally. Putting a film would lower the amount of light escaping, but the temperature is more apt for seeing. So is the loss acceptable? And what kind of film?
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Old 24th October 2016, 09:52   #217
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Default Re: Auxiliary Lamps

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Is this actually effective? I have a 120w bar on my car, but I find it washed out occasionally. Putting a film would lower the amount of light escaping, but the temperature is more apt for seeing. So is the loss acceptable? And what kind of film?
Putting on a tint film does reduce peripheral glare. "thewhiteknight" has just got a 120W 5D combo bar and was testing the throw. Glare for oncoming vehicles was terrible. Amber covers cuts out the glare to a large extent.

Regarding temperature, I prefer neutral daylight (mild yellowish) lights. That would be in the range of 3800-4300K. I guess it is the result of 40 years of driving with filament bulbs.
"thewhiteknight" prefers slightly more whitish light (around 5000K).
But we are both agreed that for fog situations yellow, around 3000K, is the best. And that is why I have applied the tint film to the halogen fog lens.

So temperature depends on personal choice. But as far as drivability is concerned it is the intensity of lighting and what I call "contrast ratio" that is important.

Contrast Ratio is the amount of light, particularly for high beams, used that does not result in your night vision getting affected when switching the beam on & off. A decent ratio will help highlight objects when you flash your high beams. I have found that to be the most effective way of night driving, particularly when you have oncoming two wheelers.

If your near lights are too intense(in terms of the amount of light they throw on the ground) then you run the risk of upsetting your contrast ratio vision.

Hopefully "thewhiteknight" & I will be able to complete our aux lighting installs over Diwali. Will post photos then.
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Old 25th October 2016, 22:21   #218
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Default Re: Auxiliary Lamps

looking to put some Aux Led for my Xylo.
kindly provide your suggestions on feasible options:

a) one 200w 5D 20" CREE (42 x 5w) combo (flood-spot-flood) bar. ref : https://www.aliexpress.com/store/pro...860.0.0.mYdSSs

b) two x 60w 5D 7" (12 x 5w) Spot 30deg. ref : https://www.aliexpress.com/store/pro...860.0.0.mYdSSs

regards,
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Old 26th October 2016, 08:51   #219
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Default Re: Auxiliary Lamps

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Originally Posted by pcpranav View Post
looking to put some Aux Led for my Xylo.
kindly provide your suggestions on feasible options:

a) one 200w 5D 20" CREE (42 x 5w) combo (flood-spot-flood) bar. ref : https://www.aliexpress.com/store/pro...860.0.0.mYdSSs

b) two x 60w 5D 7" (12 x 5w) Spot 30deg. ref : https://www.aliexpress.com/store/pro...860.0.0.mYdSSs

regards,
The 200W 5D combo bar is overkill for road use. It should only be used for off-road. Scatter from the floods will only blind oncoming traffic!!

The 60W spot looks like a better choice.

Hold your horses for a couple of days. By then we will have completed our installs and can post a comparo of 120w 5D combo (30& 60 degrees) vs. 4D spot (pure10 degree).
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Old 9th November 2016, 22:05   #220
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Default Re: Auxiliary Lamps

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Originally Posted by sridhar-v View Post
Could you post some photos of the light throw of the led bar.
Thanks
There you go buddy, this is actually pointing a little low so that the oncoming traffic is not blinded.

Only Halogen 100/90 in High

Auxiliary Lamps-img_20161102_000633.jpg

The LED bar in action, makes the night drive much more comfortable.

Auxiliary Lamps-img_20161102_000642.jpg
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