Could LED lights improve MPG?

[Yuriman]

3000K is yellow, like halogen bulbs. 4300K is what I picked out, which is whiter. 5000K is very white, which I think looks great but whiter lights don't cut through fog as well and end up giving you more glare in bad weather. Anything higher than 5000K is going blue.

 

[JCH13]

Golly gee mister, I ain't never seen them fancy headlights before! You'll have to explain it to me again.

Still, no evidence to suggest an efficiency level of any sort.

 

[agent00f]

Heh. It's somewhat amusing watching a consistent appeal to authority where the authority in question is also the person making the claim. 😛

Still waiting for a source from agent...

Why would it take a "source" to see what's readily evident from looking at any headlight design? Have you figured out yet how 40% of the light could be trapped in said any? Seem rather obvious that anyone who can at least point to the obvious is not the equal of those who have a real hard time with it all, and the subsequent conversation would be one of spoon feeding rather than where rules of debate might apply.

Golly gee mister, I ain't never seen them fancy headlights before! You'll have to explain it to me again.

Still, no evidence to suggest an efficiency level of any sort.

It's curious why you don't quote my posts in your replies. It's worth elaborating that I don't use technical words at times out of coincidence but so that googling them will produced sufficient explanation to avoid said spoon feeding, for readers of marginal ability at least. In the case notice the previous references to the applicable optic types, which should produce some efficiency ranges, the only one of which is close to 40% are TIR optics used in led systems. Also worth pointing out that someone previous in the thread even gave you reflector loss numbers, so it makes sense why basic research was well out of ability here.

 

[jlee]

Why would it take a "source" to see what's readily evident from looking at any headlight design? Have you figured out yet how 40% of the light could be trapped in said any? Seem rather obvious that anyone who can at least point to the obvious is not the equal of those who have a real hard time with it all, and the subsequent conversation would be one of spoon feeding rather than where rules of debate might apply.

It's curious why you don't quote my posts in your replies. It's worth elaborating that I don't use technical words at times out of coincidence but so that googling them will produced sufficient explanation to avoid said spoon feeding, for readers of marginal ability at least. In the case notice the previous references to the applicable optic types, which should produce some efficiency ranges, the only one of which is close to 40% are TIR optics used in led systems. Also worth pointing out that someone previous in the thread even gave you reflector loss numbers, so it makes sense why basic research was well out of ability here.

Once again, an appeal to (self)authority with a side of ad hominem.

 

[agent00f]

Once again, an appeal to (self)authority with a side of ad hominem.

Doesn't really help your case to consider basic calculations to be an appeal to authority. Also "ad hom" doesn't mean mocking someone, but an invalid personal justification for dismissing an argument which doesn't apply here at all. Seems pretty obvious you don't know anything about these sort of terms so best avoid using them to prevent looking dumb.

 

[JCH13]

The reflector losses that rstrohkirch mentioned were for LEDs, not HIDs. The two technologies have different reflector losses. Not sure what you're trying to get at.

I am confused about why it's so hard for you to link these sources that you can find so easily.

 

[agent00f]

The reflector losses that rstrohkirch mentioned were for LEDs, not HIDs. The two technologies have different reflector losses. Not sure what you're trying to get at.

I am confused about why it's so hard for you to link these sources that you can find so easily.

Why would reflector loss depend on light source? Are you looking for a physics book where the optics equations don't contain some reference to HID or LED?: https://www.amazon.com/Fundamentals-Physics-David-Halliday/dp/111823071X

 

[jlee]

Doesn't really help your case to consider basic calculations to be an appeal to authority. Also "ad hom" doesn't mean mocking someone, but an invalid personal justification for dismissing an argument which doesn't apply here at all. Seems pretty obvious you don't know anything about these sort of terms so best avoid using them to prevent looking dumb.

https://yourlogicalfallacyis.com/tu-quoque

You avoided having to engage with criticism by turning it back on the accuser - you answered criticism with criticism.

 

[agent00f]

https://yourlogicalfallacyis.com/tu-quoque

The counterargument trivially explained both why you claim was wrong and what led to the incompetence. It makes perfect sense though that you'll continue having such a hard time understanding any of it.

 

[jlee]

The counterargument trivially explained both why you claim was wrong and what led to the incompetence. It makes perfect sense though that you'll continue having such a hard time understanding any of it.

I am still waiting for a response that is not fallacious and JCH13 is still waiting for a source to back up your claims. Repeating your own claims does not make you correct.

 

[agent00f]

I am still waiting for a response that is not fallacious and JCH13 is still waiting for a source to back up your claims. Repeating your own claims does not make you correct.

It's rather trivial that the simplest of ratio calculation is not a matter of authority, even if someone for the life of them can't figure out why.

 

[JulesMaximus]

So I'm thinking now of replacing my headlights for my Ford C-max. Aside from the efficiency thing, I can barely see them while on the road much of the time.

Recommend some HID lights? What color temperature is best?

Really? I find that hard to believe. All OEM lights put out an adequate amount of light for safe driving at night at normal speeds. Are your headlights clean? Are the lenses faded? Because you can polish them if that is the case.

There are far too many vehicles on the road with ridiculously bright headlights IMO. I wish law enforcement would crack down on this and trucks with out of adjustment headlights due to aftermarket lifts.

 

[JCH13]

Reflector losses depend on the type of light source because HIDs emit light in all directions that needs to be directed 'forward.' LEDs emit light in one direction already, requiring less optical intervention to get pointed in the desired area than HID, which means they have lower reflector losses than HID.

Those pretty pictures you've been linking to make the big assumption that the light source is a point, which is certainly not true.

 

[agent00f]

Reflector losses depend on the type of light source because HIDs emit light in all directions that needs to be directed 'forward.' LEDs emit light in one direction already, requiring less optical intervention to get pointed in the desired area than HID, which means they have lower reflector losses than HID.

Those pretty pictures you've been linking to make the big assumption that the light source is a point, which is certainly not true.

LEDs also don't emit in a profile anywhere near a headlamp beam, as readily seen in any led spec. Reflector loss isn't predicated on angle and tends to be rather low, certainly lower than led TIR optics as seen used in the video linked above. Let's remain optimistic that one day you might figure out the basics along with how to use the reply button.