Brightness/ alignment of new cars/ LEDS head lamps

I think you apply inductive logic based on experience with led's for home lighting - they probably have more poh, but 3-4 years before it's time to die,
and if you post mortem them you typically see poor heat dissipation as cause (the heat sinks on the teslas look impressive though)

Xenon was probably the sweet spot, like the NA bmw inline6 for engines.... it's annoying that autotrader you cant negate searches, no Leds, ..and no M-suspension
 
jpaul said:
I think you apply inductive logic based on experience with led's for home lighting - they probably have more poh, but 3-4 years before it's time to die,
and if you post mortem them you typically see poor heat dissipation as cause (the heat sinks on the teslas look impressive though)
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They look like a DIY home project to me! Thats the key bit, domestic cheap just work to the minimum, like a phone. Cars with tier1 suppliers and their warrantied components to a large OEM is a totally different kettle of fish in terms of operating conditions, design and validation and ultimatley life.

Hows that for 'inductive logic' most people call it critical thinking.
 
jpaul said:
I think you apply inductive logic based on experience with led's for home lighting - they probably have more poh, but 3-4 years before it's time to die,
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I hope this isn't the case... all leds are not created equally even in my house we have some cheap Amazon specials which have been replaced after a few years as well as some branded ones which have already lasted 5 years

my hope is the ones in cars are a significant step up from them (the ones that failed in my house I think tend to be the circuitry around the led failing rather than the led itself (but i may be wrong)

jpaul may have a point about xenon lights. they are pretty bright (the step up from my fiat coupe using normal bulbs to my 350z using xenon's was huge). they last a fairly long time (never had to replace them on my 9 year old 350z when I traded her in) but whilst not as cheap as a bulb they won't ever write the car off either if they need to be replaced.

again to be clear the lights on my ipace are great but learning of the costs should they fail has taken the shine off them a bit (boom boom ;) )
 
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Jonnycoupe said:
They look like a DIY home project to me! Thats the key bit, domestic cheap just work to the minimum, like a phone. Cars with tier1 suppliers and their warrantied components to a large OEM is a totally different kettle of fish in terms of operating conditions, design and validation and ultimatley life.

Hows that for 'inductive logic' most people call it critical thinking.
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Not sure about that lol. Not on British, Italian or French brands anyway.

All of them get electrical issues due to cheap parts/poor design. The only reason Lotus became reliable is because they started using Japanese and German electronics
 
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what the tesla matrix - samsung manufacturers say on another ev bulb

53461793708_2b8dd230ba_z_d.jpg


just have to hope their 3 sigma is good

on the matrix ones - surprising each headlight just 2500cd - I's suppose it's how you focus it though.


Luminance (Median Lv @ IF = 300 ㎃) Min. 70 cd/㎟
Luminance Non-Uniformity (@ Die) Max. 10%
Contrast Ratio (8 cells off / 1 cell on) 300:1
Viewing Angle Typ. 116º
Forward Voltage (Median VF @ IF = 300 ㎃) Typ. 3.4 V
Power Comsumption Max. 50W
Radian Surface 0.35 ㎟ @ 1 px.
# of Segments in a Chip 100 (4 rows)
 
Not sure how they are figuring that cost out lol. An annual cost for bulb replacement is obviously BS.

I've never had to replace halogen bulbs that often and it's like £3-5 for a good one vs potential 1000s if an LED one goes. If changing a £5 every year (which is excessive) it would take 200 years before I spend £1000 on them.
 
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ok so you are not interested in the tesla/samsung matrix solution versus DLP, their marketting spiel, or lumens it puts out

johnny-cab-total-recall.gif
 
I must admit my Model 3 (2020) has super bright LEDs that point in whatever direction they please. It has been back to Tesla on 3 separate occasions as the n/s is almost always pointing too high (IMO) and they realign it and say it's fine. I am not sure if the OTA software updates reset it or not but recurrent problem and I suspect a lot of owners don't realise/care to try to get it sorted.
 
Type_R said:
I must admit my Model 3 (2020) has super bright LEDs that point in whatever direction they please. It has been back to Tesla on 3 separate occasions as the n/s is almost always pointing too high (IMO) and they realign it and say it's fine. I am not sure if the OTA software updates reset it or not but recurrent problem and I suspect a lot of owners don't realise/care to try to get it sorted.
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I saw one which constantly turned full beams on and off none stop while going down the road. Pretty funny and quite embarrassing the driver I bet :D

Tesla are like the Bethesda of car software.
 
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Nasher said:
I saw one which constantly turned full beams on and off none stop while going down the road. Pretty funny and quite embarrassing the driver I bet :D

Tesla are like the Bethesda of car software.
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Nah, Tesla are the Apple of cars where owners are basically the field test team and a software update might break more things than it fixes.

Normie : “I can get a car that does everything your Tesla does, but better and much cheaper.”

Elonite : “But won‘t be a Tesla. Tesla is better.”
 
Type_R said:
I must admit my Model 3 (2020) has super bright LEDs that point in whatever direction they please. It has been back to Tesla on 3 separate occasions as the n/s is almost always pointing too high (IMO) and they realign it and say it's fine. I am not sure if the OTA software updates reset it or not but recurrent problem and I suspect a lot of owners don't realise/care to try to get it sorted.
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I find more often then not I have to run the realignment after a software update on my model 3. I don't have matrix though so not sure if they suffer from the same issue.
 
theone8181 said:
I find more often then not I have to run the realignment after a software update on my model 3. I don't have matrix though so not sure if they suffer from the same issue.
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M3P goes back next month to be replaced with a BMW i4 M50 with LED laser lights..looking forward to those lighting up the path a few miles ahead :)
 
Type_R said:
M3P goes back next month to be replaced with a BMW i4 M50 with LED laser lights..looking forward to those lighting up the path a few miles ahead :)
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Be interesting to see how you get on, I think of the model 3 as a very fast car, but it's clearly not 'sporty' imo. I'd love to go for a taycan to solve that, but I don't have 100 grand lying around :cry: .
 
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