Halogen -VS- LED Headlights with pictures

Croft · 10-28-2009, 09:25 AM

Quote:

Originally Posted by priora

I bought the Prius IV and I am extremely disappointed with the headlights. The brightest part seems to be offcenter towards the drivers side, and there is so little light off the front corners of the car that I have trouble parking or even making sharp turns around roads b/c I can't see around the corner.

I am very concerned that I will end up hitting curbs and such b/c I can't see where they are.

I was going to suggest supplementing the headlights with the front fog lights As an interim solution but I see most of the US models do not have them fitted as standard. In my current car (not a Prius) I have increasingly found these to be of value at night on unlit roads so I have better situational awareness, especially when it rains.

skamar · 11-17-2009, 04:46 PM

Quote:

Originally Posted by windstrings

Even if it was an even swap.... I honestly don't know if I would consider it.

Its obvious they are close or there wouldn't be such a toss back and forth in the debate.

The warmer color is more natural for the brain to interpret that kelvin as its used to seeing all day long.

If you compare the pics and looks at things the lights could never illuminate "like the sky" you will see the LED pic is brighter.
Is that due to different settings on the camera or earlier in the eve.. I don't know, but without that being the same, its hard to compare the rest.
If fact, if a camera settings are not "fixed" on its Fstop and shutter speed, the camera will adjust the picture darker for the brighter light "in an attempt to make it normal", the result can be the background is darker.

Without knowing if the camera settings are constant, again, its hard to compare.

Even when looking at the pictures, if you stare for long, you will notice the warmer pic is easier on the eyes and "invites" you into the scene.

When you come around a corner and have milliseconds to interpret whether the blob you see on the road is a rock, rabbit, or just a spot or shadow on the road makes a big difference if the brain and make an accurate interpretation quick enough to make an informed reaction.

Sometimes our choice is just personal preference.... like anything else, change is good.... thats why we go to purple and other crazy colors.
Whats safest is not always "funnest".

I do like the Halogens, they put the old halogens of yesteryear to shame... possibly because of how the light is focused. But when high beam is on.. I see "everything".. not just whats down on the ground, but tree tops, limbs, signs etc.

I don't know all the things that you are telling us here, but here in Greece if you try to drive at night when it’s raining in a small country road with halogen headlamps you can't see anything especially when there are other cars at the opposite direction. But if you have the led headlights you can see everything. You are telling us “Its quite impressive when I hit the high beams as "all the signs" on the freeway in the distance light up like a neon light.” But with the led Headlamps you can see that without the high beams. Just try them and you can see what I mean.

I don't have LED to compare to, but I still have two GenIIs with HID.

I was one of the worst skeptics when trying to decide whether to take a package IV with Halogen as I didn't trust I would be able to adjust to the lesser light output after being used to the HIDs.
But I'm glad to say... thats a non-issue.

I don't know all the things that you are telling us here, but here in Greece if you try to drive at night when it’s raining in a small country road with halogen headlamps you can't see anything especially when there are other cars at the opposite direction. But if you have the led headlights you can see everything. You are telling us “Its quite impressive when I hit the high beams as "all the signs" on the freeway in the distance light up like a neon light.” But with the led Headlamps you can see that without the high beams. Just try them and you can see what I mean.

codybigdog123 · 11-17-2009, 05:17 PM

Quote:

Originally Posted by Paradox

As promised in the LED Headlamp comparison thread, I went out a few minutes ago and took pictures of my Dads Prius III Halogen headlights and then took a picture of my Prius V's LED headlights. Now I had to take the pictures about 5 minutes apart, but this was the best I could do. I live in NYC and there are street lights everywhere so I had to go to a facility my job has a little away from the house where there are very few lights...

I don't know squat about taking pictures but had some advice about settings so I set up my camera as recommended. The pics were taken in Manual, with ISO400, white balance set to daylight, no flash and an exposure time of 1 second. I also locked the exposure as described in the other thread.

First we have the Halogen headlights:

And next we have the LED Headlights:

I think the difference is amazing when compared like this. I had never driven my dads car at night since he bought it. All my cars since 2000 have had HID's in them (except 2001 and half of 2002 when I had a Camaro SS) so I was taken back by how yellow the beam is. It's amazing how one can get so used to the white light of HID/LED's.

The biggest difference naturally is the white light emmitted by the LED's as well as how the light is distributed much wider close to the car. It also looks to me as if the LED's have a bit of a wider spread at a distance. It's almost like the Halogens light up more straight down the middle and the LED's distribute the light evenly across the whole road without a brighter area detected left right or center.

I'm sure there will still be much debate the pro's and con's of halogen vs LED but hey, that's what makes this all so much fun!

No knock on the LED's, but a few comments if one is to really make a fair comparison between LED's and halogens:

(1) I assume you used the stock halogens? That being said, there are now a host of newer generation aftermarket halogens that offer significantly more brightness/lumens (but still at 55watts), and a much "whiter" light than the OEM halogens. No idea how they would compare to the LED's?

(2) From just looking at the pictures, by far, the biggest difference seems to be in the spectrum of the light, with the LED's being much "whiter" than the halogens. While the "whiter" look (vis a vi, stainless steel appliances) is all the rage, it is not clearly obvious to me that I gain any significant advantage in seeing an object in the road, some 25m, 50 or 100 meters out? Further, how would things look in the rain, mist or fog...when you really need to see what's out in front of you. Color/spectrum aside, I'm more interested in knowing the lumens that are projected at various distances with the two different technologies.

Yes, whiter is "cooler", but does it really help my nighttime driving? By way of the magic of digital photography...I wonder how the two images would compare, or whether you could even tell much of a difference, if you simply put a colored filter in front of the LED light...such that the spectral color looked more like the halogens, but with no/minimal attenuation of the light? Is much of the difference we all see due to the color of the light, or how much light is projected on to the road?

windstrings · 11-17-2009, 07:35 PM

Another question I have is..... are these comparison shots of the package IV with Halogen on high beam vs. package V with LED as lower beam and halogen for high?

Because LED is only for low beam and it appears thats all I'm seeing here because my High beams go much farther than those photos imply with my Halogens on High beam.... yes low beam is not that impressive.

If we are comparing onlly low beams, then yes, I prefer the LED's but if we are comparing both packages with all lights on, which would be on high beam mode, then I actually like my Halogens better.

It was my understanding that the the low beam is the only thing thats LED on the package IV.

I'm guessing the shape of the housing is why the high beams on the Package IV shine differently?

Where am I wrong here?.... because something doesn't add up with those pics.....

But again.... when you compare pics, you can get a hint of how the camera was set by looking at what the car Light "could not reach to illluminate"... like the sky.
If the sky is brighter in one shot, that means the camera was set to a longer exposure or a wider aperture in either case more light was allowed through the lens which makes the whole picture brighter.

Its obvious the LED shot is allowing more light... look at the sky and the distant trees.
The Halogen shot is either different settings on the camera, or the evening has gone longer.... in either case, there is less ambient light overall and its a darker night shot.

Plus the LED shot was taken back a bit farthur and the light pole in the immediate right is bright with reflected light.. in the Halogen shot there is no light pole at all... again giving the simulation of a darker shot.

But my final point is that I believe the High beams of the Halogen would attempt to light up the trees in the distance... in both of those shots there is no illumination at all which makes me think these are low beam shots.
Also if you look at the little post to the left you can see where the light gets chopped off whereas its dark on the top portion of the post.

Paradox · 11-17-2009, 08:19 PM

It was a Prius III (dads) and my Prius V. Yes, the sky is a bit brighter in one picture than the other. I have already described time difference etc. Take the pictures for what they are... The halogens are yellower than the LED's. They light up in a wider beam pattern. Even with the difference noted you can get the feel of how the LED's beam pattern light things up different. I had to drive a car drive home and go back. I also didn't mark the spot. I did this to give a general idea. that is all.

windstrings · 11-17-2009, 08:59 PM

Its always hard to get good shots.... I'm a member of Candle power forums and have been associated with a few heavy weight light shootouts... its hard to give justice to each light unless variables are controlled.

Thanks for the effort, it does give an idea of the different feel.

When I ran my HID's with my GenII, I was convinced I would never like Halogens again.
In fact if you follow my threads, I was quite paranoid about a step backwards to go to the GenIII.

As we know there are different preferences for color temperature and the lower the Kelvin "yellower" the more lumens are displayed per watt, but it doesn't always appear that way to the eye as the brighter bluer colors mimic those frequencies of much brighter lights.

When in fact, they often illuminate objects worse when all things are equal mostly because thats what the brain interprets. In dim lighting, "far distance and low power up close" the lower kelvin works better and in intense light its not so important.

Both packages have a fine set of lights and If I owned a package V, I'm sure I would be proud and bias'd towards them too.

I'm not trying to put down any set over the other but rather try to look at the best of both because they both have advantages over the other.

I really do think the Halogen throw farther and higher than the HIds did but the HID's may have had a broader throw to the sides. I still have two GenII's but I never drive them :>

I've never driven the LED package but I would imagine they are quite impressive in high beam mode when the LED's are covering the lowside and the Halogen the High but I can only presume as I've never been in one yet.

codybigdog123 · 11-18-2009, 11:57 AM

Quote:

Originally Posted by priora

I bought the Prius IV and I am extremely disappointed with the headlights. The brightest part seems to be offcenter towards the drivers side, and there is so little light off the front corners of the car that I have trouble parking or even making sharp turns around roads b/c I can't see around the corner.

I am very concerned that I will end up hitting curbs and such b/c I can't see where they are.

You have a problem. Maybe your headlights need adjusting? I have a IV, and I have none of those problems. I am, however, looking to put in a newer generation of aftermarket halogens that give a whiter spectrum, and more lumens down the road.

I recently switched halogens (from the OEM's) on my wife's Odyssey, and then reajusted the headlight assembly to get more light where I wanted it...and it made a HUGE difference in nighttime drivability. I opted for the Silverstar ULTRA:

Dailymotion - OSRAM SYLVANIA offers tips and headlights to make ... - a Auto-Moto video

I don't think they are available (yet) for the 2010 Prius, but I'm sure they will be...

windstrings · 11-18-2009, 04:51 PM

I too and thinking of upgrading just for the fun of it.. but so far I"ve had little motivation since they work so good.

Hey Toyota!.. how about side lights that come on when the blinker is activated, otherwise all the light is thrown forward where you drive like it should be.

Seems I"ve seen that on some of the luxury cars.

Paradox · 11-18-2009, 08:29 PM

Quote:

Originally Posted by windstrings

I too and thinking of upgrading just for the fun of it.. but so far I"ve had little motivation since they work so good.

Hey Toyota!.. how about side lights that come on when the blinker is activated, otherwise all the light is thrown forward where you drive like it should be.

Seems I"ve seen that on some of the luxury cars.

My father always asks why cars don't have cornering lights anymore lol. My first car, an 85 Maxima which I got from him when I turned 17, had them. I used to like having them so if someone was going slow in the left lane, as I passed em I'd put my signal on and the light was quite bright and would hit them right as I went by...

I saw them on Cadillacs in years after that car but don't even know if anymore new cars have them.

windstrings · 11-18-2009, 10:13 PM

Quote:

Originally Posted by Paradox

My father always asks why cars don't have cornering lights anymore lol. My first car, an 85 Maxima which I got from him when I turned 17, had them. I used to like having them so if someone was going slow in the left lane, as I passed em I'd put my signal on and the light was quite bright and would hit them right as I went by...

I saw them on Cadillacs in years after that car but don't even know if anymore new cars have them.

I was thinking about the complaint of not having enough side light on my way home in the dark a couple of hours ago and I just don't have that issue.
Theres plenty of light on the side.... yes there is less on low beam alone, but plenty on high for sure.

I was trying to figure out which circumstances may make me feel like there is not enough light and the only thing that comes to mind if I was driving "very" slow... otherwise I would have never thought about it unless I had read it here.

I'm wondering if those are defective.
Maybe going to a dealer and taking a test drive in another at night would tell the story.

11-17-2009, 07:35 PM	#44
windstrings Certified Prius Breeder Join Date: Sep 2005 Location: Central Texas Posts: 5,292 My Car: 2010 Prius Model: IV Package: Solar Roof Thanks: 2 Thanked 79 Times in 66 Posts Friends: 4	Re: Halogen -VS- LED Headlights with pictures Another question I have is..... are these comparison shots of the package IV with Halogen on high beam vs. package V with LED as lower beam and halogen for high? Because LED is only for low beam and it appears thats all I'm seeing here because my High beams go much farther than those photos imply with my Halogens on High beam.... yes low beam is not that impressive. If we are comparing onlly low beams, then yes, I prefer the LED's but if we are comparing both packages with all lights on, which would be on high beam mode, then I actually like my Halogens better. It was my understanding that the the low beam is the only thing thats LED on the package IV. I'm guessing the shape of the housing is why the high beams on the Package IV shine differently? Where am I wrong here?.... because something doesn't add up with those pics..... But again.... when you compare pics, you can get a hint of how the camera was set by looking at what the car Light "could not reach to illluminate"... like the sky. If the sky is brighter in one shot, that means the camera was set to a longer exposure or a wider aperture in either case more light was allowed through the lens which makes the whole picture brighter. Its obvious the LED shot is allowing more light... look at the sky and the distant trees. The Halogen shot is either different settings on the camera, or the evening has gone longer.... in either case, there is less ambient light overall and its a darker night shot. Plus the LED shot was taken back a bit farthur and the light pole in the immediate right is bright with reflected light.. in the Halogen shot there is no light pole at all... again giving the simulation of a darker shot. But my final point is that I believe the High beams of the Halogen would attempt to light up the trees in the distance... in both of those shots there is no illumination at all which makes me think these are low beam shots. Also if you look at the little post to the left you can see where the light gets chopped off whereas its dark on the top portion of the post. __________________ Alan ________________________ 2010 Blue Ribbon Metallic IV with Bisque leather...."My Blue Baby" And my "other" cars...... 2006 Barcelona Red Prius Pkg #8 with Bisque leather.... Yea Baby, Yea! "The Hot Tamale" 2006 Silver Pine Mica Pkg#8 with Bisque leather.... "The Mint Julip" 2006 Mods so far: 1. Coastal EV switch 2. BT stiffening Plate 3.Zaino "the works" 4. Heat Shield "from Canvas Works" 5. Magnetic Oil plugs - Yes they work and you want them! 6. Speed sensor now switched! Last edited by windstrings; 11-17-2009 at 07:40 PM.

11-17-2009, 08:19 PM	#45
Paradox Prius Enthusiast Join Date: Sep 2005 Location: SI, NY Posts: 2,119 My Car: 2010 Prius Model: V Package: Adv. Technology Thanks: 21 Thanked 298 Times in 179 Posts Friends: 9	Re: Halogen -VS- LED Headlights with pictures It was a Prius III (dads) and my Prius V. Yes, the sky is a bit brighter in one picture than the other. I have already described time difference etc. Take the pictures for what they are... The halogens are yellower than the LED's. They light up in a wider beam pattern. Even with the difference noted you can get the feel of how the LED's beam pattern light things up different. I had to drive a car drive home and go back. I also didn't mark the spot. I did this to give a general idea. that is all. __________________ Mark - Priuschat Moderator & Prius Expert "Facebook - Ask An Expert" I am not employed by Toyota, and the opinions expressed by me as a Prius Expert are not those of Toyota.

11-17-2009, 08:59 PM	#46
windstrings Certified Prius Breeder Join Date: Sep 2005 Location: Central Texas Posts: 5,292 My Car: 2010 Prius Model: IV Package: Solar Roof Thanks: 2 Thanked 79 Times in 66 Posts Friends: 4	Re: Halogen -VS- LED Headlights with pictures Its always hard to get good shots.... I'm a member of Candle power forums and have been associated with a few heavy weight light shootouts... its hard to give justice to each light unless variables are controlled. Thanks for the effort, it does give an idea of the different feel. When I ran my HID's with my GenII, I was convinced I would never like Halogens again. In fact if you follow my threads, I was quite paranoid about a step backwards to go to the GenIII. As we know there are different preferences for color temperature and the lower the Kelvin "yellower" the more lumens are displayed per watt, but it doesn't always appear that way to the eye as the brighter bluer colors mimic those frequencies of much brighter lights. When in fact, they often illuminate objects worse when all things are equal mostly because thats what the brain interprets. In dim lighting, "far distance and low power up close" the lower kelvin works better and in intense light its not so important. Both packages have a fine set of lights and If I owned a package V, I'm sure I would be proud and bias'd towards them too. I'm not trying to put down any set over the other but rather try to look at the best of both because they both have advantages over the other. I really do think the Halogen throw farther and higher than the HIds did but the HID's may have had a broader throw to the sides. I still have two GenII's but I never drive them :> I've never driven the LED package but I would imagine they are quite impressive in high beam mode when the LED's are covering the lowside and the Halogen the High but I can only presume as I've never been in one yet. Last edited by windstrings; 11-17-2009 at 09:02 PM.

11-18-2009, 04:51 PM	#48
windstrings Certified Prius Breeder Join Date: Sep 2005 Location: Central Texas Posts: 5,292 My Car: 2010 Prius Model: IV Package: Solar Roof Thanks: 2 Thanked 79 Times in 66 Posts Friends: 4	Re: Halogen -VS- LED Headlights with pictures I too and thinking of upgrading just for the fun of it.. but so far I"ve had little motivation since they work so good. Hey Toyota!.. how about side lights that come on when the blinker is activated, otherwise all the light is thrown forward where you drive like it should be. Seems I"ve seen that on some of the luxury cars.

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Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-09-2009 01:05 AM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-08-2009 12:02 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-06-2009 11:21 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-06-2009 12:51 AM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-05-2009 05:10 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-05-2009 02:24 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-05-2009 01:45 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-05-2009 01:36 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-05-2009 12:24 PM
Mi Toyota Prius - sobre los leds del 3G - Tuning Prius 3G	This thread	Refback	08-04-2009 05:18 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-04-2009 01:27 PM
Halogen vs. LED headlight : a direct comparison beamshots - CandlePowerForums	This thread	Refback	08-04-2009 01:09 PM

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