5th & 6th Generation (2002-2006 & 2007-2011)Toyota Camry Discussion for years: 2002-2006 & 2007-2011
Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.
*Note bulbs are not to be used as a primary source of light.
They just have a bright glow. Emitt just as much light as a dome light.
__________________ Your source for Gen6 TSX Retro's (PM for details)
2005 Lexus ES330
2007 Camry SE V-6 Titanium(SOLD)
Moonroof, Navi, Sport Leather, Floor Mats, Phillips 4300k HID, 15% Tint, Silverstar Turn signals “My friends call me ‘The Cane.’ Even before I messed up my leg.” ~Dr. Gregory house
I have never seen this b4. However, the sentence "..... as primary source of light" worries me. It seems like it's something that has a nice white light but is not going to be good for illumination. It would be better for show.
Quote:
Originally Posted by JSM1284
*Note bulbs are not to be used as a primary source of light.
They just have a bright glow. Emitt just as much light as a dome light.
Correct. This is for looks, Not one bit of practical use
__________________ Your source for Gen6 TSX Retro's (PM for details)
2005 Lexus ES330
2007 Camry SE V-6 Titanium(SOLD)
Moonroof, Navi, Sport Leather, Floor Mats, Phillips 4300k HID, 15% Tint, Silverstar Turn signals “My friends call me ‘The Cane.’ Even before I messed up my leg.” ~Dr. Gregory house
And they pack a pretty damn big LED but below it also says not recommended for headlights so distance light output sux. I always love how they say wattage OUTPUT 100 W and uses 1.5 W. I don't know how they measure that...
The Lexus LS600hL is the first production vehicle to use LED Headlights. And they really arent that great, After driving it at night, My HIDs put out better light. But I do like the AFS feature.
__________________ Your source for Gen6 TSX Retro's (PM for details)
2005 Lexus ES330
2007 Camry SE V-6 Titanium(SOLD)
Moonroof, Navi, Sport Leather, Floor Mats, Phillips 4300k HID, 15% Tint, Silverstar Turn signals “My friends call me ‘The Cane.’ Even before I messed up my leg.” ~Dr. Gregory house
Those are actual headlights designed to use LEDs, so there's a big difference.
Got to go back to physics: how far light traveling in air outside the LED/Bulb does not depend how the light was created (assuming same wavelengths spectrum), okay! What is different is how the light is directed/concentrated to achieve higher illumination at a certain direction and distance. LED's are by far more power efficient than traditional bulbs and in theory you can create much more light output with the same input current. The problem is you need custom optics to accommodate the different wavelength band and directionality of light created by LED vs bulbs/HID. I assume when you think the light "does not travel as far" simply means the light is much more diffuse and therefore density in forward direction as desired is much lower....well, don't want to preach, but it's really only physics.
LED headlights are being promoted as an environmental benefit, not because of its output performance. For those who don't know, our Camry takes 55W headlights (giving a total of 110W of electricity used). Even allowing for some inefficiency in the alternator this would make a very small impact on the fuel use of our 3.5L 268hp V6, or 2.4L 158hp I4. The Audi R8 is equipped with a 4.2L FSI (Fuel Stratified Injection) producting 414hp. LED headlights will do some good for plug-in hybrid cars and all-electric vehicles where saving power is more important. Also, a range of levels of luminosity could be effectively used in headlights to increase efficiency in some situations and increase light levels in others. For example, as in parking lights and headlights. When driving just before sun-set or at night in the city where the street lights are bright, you need headlights to allow other drivers to clearly see you but you don't need them as bright as they have to be when driving at night in the country. This way of dimming the headlights can be done by turning off some of the LEDs in the bank. As of right now, it is currently impossible to create a single LED that takes more than 1W of power, so a bank of LEDs must be used.
As of right now, it is currently impossible to create a single LED that takes more than 1W of power, so a bank of LEDs must be used.
Exactly, therefore I guess it is not easy to do the reflector optics for headlights in an affordable way - like a distributed light source. Possible, but not cheap.
Exactly, therefore I guess it is not easy to do the reflector optics for headlights in an affordable way - like a distributed light source. Possible, but not cheap.
They can have a set of LEDs pointing in different directions and which LEDs get power would determine where the light goes.
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