2017 iihs top safety pick +
#16
Lexus Test Driver
Not sure if it matters but on the manual it states how to adjust the headlight aim only for the SINGLE beam headlights. I could find no reference to the triple beams. However, on the black plastic piece there are holes to adjust the triple beams. I haven't actually tried it yet. If I had a good wall/garage I'd do it already but it's going to have to wait.
#17
I suspect, based on lexnewbi's post above, that when we can in fact adjust slightly lower using the 2 screws, that we set a new default setting for what the RX judges as being a normal level. So, once lowered a mite, the auto-leveling systems then considers that new setting as the new normal. Just MHO.
#18
Driver School Candidate
I posted this in another thread, but it relates to this:
I do have some qualms with how IIHS rates the headlights because they don't aim before the test. It's something that I believe a lot of dealers are requested to do during a PDR, but I doubt most do. Trucks are notoriously bad for this. They are usually intentionally aimed down from the factory not only for the 2* down requirement from FMVSS, but also because they often assume that you'll be towing, or have a load in the bed so the headlights are aimed lower than when it's typically driven (and how IIHS is testing). Therefore IIHS is giving almost every single truck a terrible rating. I have a feeling that either headlights will be aimed from the factory, or more auto-leveling will become standard in the very near future.
As for the RX, the Kioto Bi-LED that is in the standard are fantastic. They are actually the best rated headlight projector by IIHS. The same ones used in the Prius V. Which is also why I have qualms about the IIHS testing. Exact same internal unit, same driven power, but different results on different cars, mostly because of the minute difference in headlight aim.
However the triple beam LED is clearly a downgrade in performance, and more of a styling upgrade. I do love the way they look, but if the standard one is going to be 30% brighter where it counts, and 50% brighter in the width areas, I know where I'll save my money.
First post here, but I'll introduce myself. I am an optical design engineer for Diode Dynamics, and spend most of my time designing LED projector systems. Looking into an RX350 for my wife, and decided I should do some emperical testing to see if the Triple Beam stuff was worth the option. I had the dealer I'm working with grab a standard RX and one with the Triple Beam. Brought my lux-meter that I use at work to measure the light output at the same location and a few test points on a darkened wall about 50' away to see if there was a noticeable improvement or not over the standard RX headlights.
The standard ones are some of the best on the market. Kioto Bi-LED units that I consider the gold standard right now for OEMs. I've reverse engineered the exact same projector for future products, and evaluated a bunch of others. So I was curious to see how much better the premium is. So when you measure light output, the quick and dirty way is to get the lux reading, basically the light intensity per a unit of area. I measured the standard RX and got the following:
Hotspot (brightest area at the center of the beam) = 350 lux
40* off angle, aka your width = 20 lux (very impressive)
20* off angle, aka picking up objects on the side of the road = 50 lux
Then went and got the car with the triple beam headlights. Results were surprising:
Hotspot = 230 lux
40* off angle = 12 lux (most of it ambient lighting)
20* off angle = 25 lux
So all in all, the standard Bi-LED units are actually fantastic, and the only reason to upgrade to the triple beam is for the styling choice. You'll actually lose output and overall beam width compared to the standard.
Hope this is useful info for anyone in the future!
The standard ones are some of the best on the market. Kioto Bi-LED units that I consider the gold standard right now for OEMs. I've reverse engineered the exact same projector for future products, and evaluated a bunch of others. So I was curious to see how much better the premium is. So when you measure light output, the quick and dirty way is to get the lux reading, basically the light intensity per a unit of area. I measured the standard RX and got the following:
Hotspot (brightest area at the center of the beam) = 350 lux
40* off angle, aka your width = 20 lux (very impressive)
20* off angle, aka picking up objects on the side of the road = 50 lux
Then went and got the car with the triple beam headlights. Results were surprising:
Hotspot = 230 lux
40* off angle = 12 lux (most of it ambient lighting)
20* off angle = 25 lux
So all in all, the standard Bi-LED units are actually fantastic, and the only reason to upgrade to the triple beam is for the styling choice. You'll actually lose output and overall beam width compared to the standard.
Hope this is useful info for anyone in the future!
As for the RX, the Kioto Bi-LED that is in the standard are fantastic. They are actually the best rated headlight projector by IIHS. The same ones used in the Prius V. Which is also why I have qualms about the IIHS testing. Exact same internal unit, same driven power, but different results on different cars, mostly because of the minute difference in headlight aim.
However the triple beam LED is clearly a downgrade in performance, and more of a styling upgrade. I do love the way they look, but if the standard one is going to be 30% brighter where it counts, and 50% brighter in the width areas, I know where I'll save my money.
#19
Intermediate
#20
Lexus Test Driver
This sucks.. I thought it would be brighter as well. This means even if we angle it higher, the light output still won't be much farther.
#21
Driver
Thread Starter
I wonder how Toyota/Lexus/Kioto specs out their lights? From what I have been able to gather, both the bi-LED and the Triple Beams are manufactured by Kioto. Go figure why they differ so much! This video shows the lights being build for the NX (at 1:10-1:11 mark). Really cool stuff, but such a shame!
Last edited by Curryolla; 12-16-16 at 09:14 AM. Reason: Added video time.
#22
Lexus Test Driver
I thought I posted this already... In the rating, the bi-led's have some glare where as the triple has none. I thought, what if I increased the angle of the headlights a bit higher so it shines further up the road? I did and now there is much more visibility. Also, although the headlights do not move side to side, I found that the triple beams have a very wide angle of light. It can light up 7 lanes on the freeway on its own.
#23
Intermediate
I thought I posted this already... In the rating, the bi-led's have some glare where as the triple has none. I thought, what if I increased the angle of the headlights a bit higher so it shines further up the road? I did and now there is much more visibility. Also, although the headlights do not move side to side, I found that the triple beams have a very wide angle of light. It can light up 7 lanes on the freeway on its own.
#25
Pole Position
Good news on the safety.
I could not be more happy with my triple beams. Maybe they could be adjusted up a little but on high beams they are very good in my opinion.
I could not be more happy with my triple beams. Maybe they could be adjusted up a little but on high beams they are very good in my opinion.
#26
Driver
Thread Starter
I just took my RX 450h with triple beams to the dealership for its 5k service. I had the headlights adjusted up. Not sure how many turns they did, but I requested 3 turns and/or that the cut-off matches the standard RX. Either way, I know know how to change it myself...so I will be able to adjust them if they are too low or high. Attached photos show the original cut-off (blue tape) and the new cut-off. Both the headlights are about 5 feet from the wall. Not too helpful...I know. But, I'll report back the next time I drive the car at night. Just going to wait for this now storm to pass first!!!
Still looking good!
Driver Side:
Passenger Side:
Still looking good!
Driver Side:
Passenger Side:
#27
Lexus Test Driver
I just took my RX 450h with triple beams to the dealership for its 5k service. I had the headlights adjusted up. Not sure how many turns they did, but I requested 3 turns and/or that the cut-off matches the standard RX. Either way, I know know how to change it myself...so I will be able to adjust them if they are too low or high. Attached photos show the original cut-off (blue tape) and the new cut-off. Both the headlights are about 5 feet from the wall. Not too helpful...I know. But, I'll report back the next time I drive the car at night. Just going to wait for this now storm to pass first!!!
Still looking good!
Driver Side:
Passenger Side:
Still looking good!
Driver Side:
Passenger Side:
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Curryolla (03-13-17)
#28
Driver
Thread Starter
Yep! That's the plan! I hope it's not too high, but I'll report back after driving at night.
#29
Driver
Thread Starter
The lights on low beam are able to light up the speed limit signs really well. Driving down the road, the cut off is just below the windshield cowl on a Mercedes C-Class and an Infiniti Q50 that passed in the other lane. And, with the car following me in my other sedan, it did not blind me from behind. So, all in all, I'm pleased with the new position!
#30
I can't find the screws to adjust the lights.
Can somebody please help or post a photo of where the screws are located?
I even took the cover off but still was not able to find it.
Thank You.
Can somebody please help or post a photo of where the screws are located?
I even took the cover off but still was not able to find it.
Thank You.