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Author Topic: Daytime running lights  (Read 8449 times)

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feeutfo

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Re: Daytime running lights
« Reply #30 on: 21 February 2011, 22:52:59 »
Dont have a problem with them personally. But some Mercs have them brighter than omega hids afaict! Seems excessive.

They might sit well in the slots of an irmscher bumper though....    ::).   ;)
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feeutfo

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Re: Daytime running lights
« Reply #31 on: 21 February 2011, 22:57:17 »
Just below the fog lights in the slot undernieth. Not exactly high on the list though... :D
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Nickbat

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Re: Daytime running lights
« Reply #32 on: 21 February 2011, 22:57:48 »
I see this chap on the Vectra forum was stopped by the police last September for having retrofitted DRLs

http://www.vectra-c.com/forum/showthread.php?p=1321000

And yet, this DfT document says you can fit DRLs, provided they are made-for-piurpose and carry the necessary European certification stamp.

http://www.dft.gov.uk/pgr/roads/vehicles/vssafety/info-runninglights.pdf

Once again a case of legislation which few have heard of and even the police are not sure of.  ::) ::)
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Agemo

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Re: Daytime running lights
« Reply #33 on: 21 February 2011, 23:15:10 »
Most wagons coming from Scandinavian countries have had them for years, (all Scanias do) but just have a fuse pulled for UK use.
I wonder if Migs are the same  ::)
« Last Edit: 21 February 2011, 23:16:29 by Agemo »
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Martin_1962

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Re: Daytime running lights
« Reply #34 on: 21 February 2011, 23:19:57 »
I think they are terrible things, they waste electricity, make some cars look like nobs - Mercedes, and they dazzle like nobodies business.

I also hate the pulsing rear LED lights, they give me a headache, the cure is to follow on full beam so you over power them.

Some dog eating country ones are terrible as is a small open top Peugeot.
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bob.dent

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Re: Daytime running lights
« Reply #35 on: 22 February 2011, 11:31:25 »
I don't understand why there should be a need for DRL's in this country. :-/ If the light isn't very good just switch your normal lights on. Stone me, if you can't see a car in normal daylight you shouldn't be driving! ::)
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Marks DTM Calib

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Re: Daytime running lights
« Reply #36 on: 22 February 2011, 11:34:45 »
Quote
I don't understand why there should be a need for DRL's in this country. :-/ If the light isn't very good just switch your normal lights on. Stone me, if you can't see a car in normal daylight you shouldn't be driving! ::)


Nanny state Bob, so many dont turn them on and hence make the car do it automaticaly will make it safer.

Slightly suprised about the dazzling though which does suggest a legislation issue as the light output has to be quite low.

I guess its the LED's that cause the issue with the very narrow beam angle they emit light out at.
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mkirky

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Re: Daytime running lights
« Reply #37 on: 22 February 2011, 11:40:35 »
With the Goverments cut backs hopefullythey will GO ;D
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Lampynoiseboy

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Re: Daytime running lights
« Reply #38 on: 22 February 2011, 11:59:32 »
Quote
Quote
I don't understand why there should be a need for DRL's in this country. :-/ If the light isn't very good just switch your normal lights on. Stone me, if you can't see a car in normal daylight you shouldn't be driving! ::)

I would like to nominate this for post of the year!

Quote
Nanny state Bob, so many dont turn them on and hence make the car do it automaticaly will make it safer.

Slightly suprised about the dazzling though which does suggest a legislation issue as the light output has to be quite low.

I guess its the LED's that cause the issue with the very narrow beam angle they emit light out at.

It may also be an epileptic thing, IIRC there was something about LED cat's eyes recently. If you drive past them too quick (legally too), because of the tight beam angle, they can appear to be strobing & cause issues that way
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Kevin Wood

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Re: Daytime running lights
« Reply #39 on: 22 February 2011, 13:39:02 »
Quote
It may also be an epileptic thing, IIRC there was something about LED cat's eyes recently. If you drive past them too quick (legally too), because of the tight beam angle, they can appear to be strobing & cause issues that way


That's because they are strobing. They are pulse-width modulated to give constant output despite a variable battery voltage. ;)

Same with the LED tail lights on cars. They are dimmed from brake light intensity by PWM in'g them so if they move across your field of vision rapidly, you get a similar light trail. I think this is probably what Martin was objecting to. I must say, I find it irritating, too.

Kevin
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Lampynoiseboy

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Re: Daytime running lights
« Reply #40 on: 22 February 2011, 13:42:17 »
Quote
Quote
It may also be an epileptic thing, IIRC there was something about LED cat's eyes recently. If you drive past them too quick (legally too), because of the tight beam angle, they can appear to be strobing & cause issues that way


That's because they are strobing. They are pulse-width modulated to give constant output despite a variable battery voltage. ;)

Same with the LED tail lights on cars. They are dimmed from brake light intensity by PWM in'g them so if they move across your field of vision rapidly, you get a similar light trail. I think this is probably what Martin was objecting to. I must say, I find it irritating, too.

Kevin

Very true, however the effect is much more noticeable when driving past them, than staring straight at them, think it's a combination of PWN & tight beam?

Can't think they'd be debating banning ONLY cat's eyes led's not rear lights if that was the case?
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Martin_1962

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Re: Daytime running lights
« Reply #41 on: 22 February 2011, 14:22:53 »
Quote
Quote
It may also be an epileptic thing, IIRC there was something about LED cat's eyes recently. If you drive past them too quick (legally too), because of the tight beam angle, they can appear to be strobing & cause issues that way


That's because they are strobing. They are pulse-width modulated to give constant output despite a variable battery voltage. ;)

Same with the LED tail lights on cars. They are dimmed from brake light intensity by PWM in'g them so if they move across your field of vision rapidly, you get a similar light trail. I think this is probably what Martin was objecting to. I must say, I find it irritating, too.

Kevin


It is and I go full beam & fog lights and that minimises the effect. >:( >:(
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Kevin Wood

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Re: Daytime running lights
« Reply #42 on: 22 February 2011, 14:38:23 »
Quote
Very true, however the effect is much more noticeable when driving past them, than staring straight at them, think it's a combination of PWN & tight beam?

I think it's because they are moving rapidly through your field of vision at that point, which "freezes" the flashing of the lights. Plus, your eyesight is more sensitive to changes/ movement at the extremes of your field of vision anyway.

I can see how they might be distracting

Quote
Can't think they'd be debating banning ONLY cat's eyes led's not rear lights if that was the case?

Agreed. Rear lights are only an issue as your vision scans past them, but I believe it's the same principle.

Quote
It is and I go full beam & fog lights and that minimises the effect.

So now both you and the car in front are having difficulty seeing? ;)

Kevin
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Cliffo B

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Re: Daytime running lights
« Reply #43 on: 22 February 2011, 14:45:46 »
Likewise I cant for the life of me see the point,with the exception of the motor bike how can you not see all motors in daylight? and audis to me simply look dilly or some may say gay and often promote a chuckle in miggy's driving seat.For now I won't go on about BM's "Angel Eyes" now I ask you,for me more like "goofy eyes" Seriously I think on our heavy trafficked roads the motorcyclist will really lose out big time,just be another light lost among many
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Lazydocker

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Re: Daytime running lights
« Reply #44 on: 22 February 2011, 14:48:26 »
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It is and I go full beam & fog lights and that minimises the effect. >:( >:(

I'll wait for the thread about someone slamming on the brakes in front of you then ;) ;)
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