740 day running lights

  • Thread starter Thread starter Mungo \two sheds\ Toadfoot
  • Start date Start date
Adrian said:
Hamish Alker-Jones ([email protected]) gurgled happily, sounding much
like they were saying :


Better in what way?
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Well designed headlights project light on the road, not into the eyes of
oncoming drivers. DRLs project light at oncoming drivers and not down on the
road, and in being made for that they can use substantially lower wattage
lamps and still achieve higher brightness to the viewer.
 
James Sweet ([email protected]) gurgled happily, sounding much like
they were saying :
Well designed headlights project light on the road, not into the eyes
of oncoming drivers. DRLs project light at oncoming drivers and not
down on the road, and in being made for that they can use
substantially lower wattage lamps and still achieve higher brightness
to the viewer.
Click to expand...

I can only assume we've never seen a single car on the roads of the UK with
DRLs, then.

And long may that continue, if they've been stupid enough to design lights
specifically AIMED at the drivers of oncoming vehicles.
 
Hamish Alker-Jones ([email protected]) gurgled happily, sounding much
like they were saying :


No, they're for when you need to be seen, as well as for when you need to
see.
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No, that's what DRLs are for, being seen. Headlights are for seeing.

HTH

Hammo
 
The message <BF7B4A06.13072%[email protected]>


That may be true in Australia, but in the UK it's different.

Rule 201: You MUST use headlights when visibility is seriously reduced,
generally when you cannot see for more than 100 metres (328 feet). You
may also use front or rear fog lights but you MUST switch them off when
visibility improves.

http://www.highwaycode.gov.uk/21.htm#211
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Ah, true. I was (in a very cut/dry way) getting at that headlights do not
offer the wonders of "being seen" anymore than a lump of cheese. In fact,
the cheese is probably better.

I have no argument or concern when visibility is *that* low. Yes, it will
help you to be seen.

Cheers

H
 
Headlights are for seeing.
Click to expand...

But they aren't. You have to use them by law in certain circumstances
whether you need them for seeing or not. Mostly you could see
perfectly well on side lights or no lights in well lit streets at
night, but you'd be a tosser and get done for being one.
 
Not in the UK.
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Really? Apart from the *low* visibility law that was pointed out already.
There are much _better_ lights/lamps for that purpose too.

Do you still have electric milk carts, or are they long gone?

Cheers

H
 
Hamish Alker-Jones ([email protected]) gurgled happily, sounding much like
they were saying :
Really? Apart from the *low* visibility law that was pointed out already.
There are much _better_ lights/lamps for that purpose too.
Click to expand...

I fail to understand how a light designed to cast as much light as possible
onto the road whilst strictly adjusted to stay just away from dazzling
oncoming road users can possibly be bettered - unless by one aimed straight
at the eyes of approaching drivers. Which would be silly.
Do you still have electric milk carts, or are they long gone?
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Unfortunately, they've mainly been replaced with supermarkets.
 
The message <BF7C93CC.13199%[email protected]>
Really? Apart from the *low* visibility law that was pointed out already.
There are much _better_ lights/lamps for that purpose too.
Click to expand...

Ah, well, I only posted one rule from the Highway Code. For those of use
who can be arsed to read more of it...

Rule 95: You should also

* use dipped headlights, or dim-dip if fitted, at night in built-up
areas and in dull daytime weather, to ensure that you can be seen
 
And long may that continue, if they've been stupid enough to design lights
specifically AIMED at the drivers of oncoming vehicles.
Click to expand...

But that's the whole point, they're low wattage lamps just like the turn
indicators, those too are aimed at oncoming traffic for precisely the same
reason, to be visible in all lighting conditions. Of course I use the term
"aimed" loosely, the optics don't produce a beam like a headlamp.
 
James Sweet ([email protected]) gurgled happily, sounding much like
they were saying :
But that's the whole point, they're low wattage lamps just like the
turn indicators, those too are aimed at oncoming traffic for precisely
the same reason, to be visible in all lighting conditions. Of course I
use the term "aimed" loosely, the optics don't produce a beam like a
headlamp.
Click to expand...

Exactly.

You're trying to persuade me that an unfocussed 21w bulb is "more visible"
than a 50w bulb focussed into a tightly defined beam?

Big fat hairy sweaty bollocks.
 
James Sweet ([email protected]) gurgled happily, sounding much like
they were saying :



Exactly.

You're trying to persuade me that an unfocussed 21w bulb is "more visible"
than a 50w bulb focussed into a tightly defined beam?

Big fat hairy sweaty bollocks.
Click to expand...

Yes, you are right, it is load of bollocks.

Can we discuss the frequency of the light now to prove the point?

Cheers

Hamish
 
Adrian said:
James Sweet ([email protected]) gurgled happily, sounding much like
they were saying :




Exactly.

You're trying to persuade me that an unfocussed 21w bulb is "more visible"
than a 50w bulb focussed into a tightly defined beam?

Big fat hairy sweaty bollocks.
Click to expand...


But that 50W focused beam is pointed down at the road is it not? I dunno
what the arrangement is on all cars in all markets but on my car the
DRLs are far brighter from above the cutoff on the 90W low beam
headlamps, but the headlamps are obviously far better at lighting the road.
 
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