Are LEDs worth it?

[popimp]

I went to Auto Zone today and saw some LED's. They cost $16.99 for a red set of 3157 LED's. So are they really worth the cost or is it better just to change them when they go out with the OEM bulbs?

[SVOboy]

They have a faster response time for things like hitting the brakes, so they may we worth it. If you shop around you can prolly save a bit.

[VetteOwner]

well led's dont use as much current as a conventional bulb. most likely your turn signal flasher unit is load dependednt.(its why it flashes really fast if you got a light bulb burnt out) so you would either have to put load resistors in line withthe light circuit or you will have to buy an electronic flasher unit. but i highly doubt you wil see much if any mpg improvement... so after you spend $50 on bulbs and flashers lets just say your car will be a pile of dust in a scrap yard before the mpg saved would pay for it to make it worthwile..

[MnFocus]

I've bought them from here (http://www.superbrightleds.com/led_prods.htm)- yes is the answer to your Q .

For the prices they charge (even *with* shipping ) and the fact the led's will more than likely outlast the car ,yes , yes they are worth it .

[ma4t]

Just read an article in a trade paper quite a while ago about how many auto companies are switching to LED's for break lights.

Advantages:
1. Last longer
2. Light up faster
3. Take less juice

I don't remember the source, but a quick google search turned up an almost identical article.
http://www.nature.com/nphoton/journal/v1/n1/full/nphoton.2006.31.html
Their conclusion:
To conclude, over the course of the next 5–10 years it is likely that LEDs will power virtually every lighting application on vehicles with car makers increasingly embracing the benefits of their small size, high efficiency and long lifespan.

[MnFocus]

Might add that it's probably not worth doing a full retrofit *until* you need to replace a standard bulb(s) . At that time it makes sense .

[bzipitidoo]

Just guessing, but this is what I think.

At today's prices, LED headlights, if any existed, just might improve FE enough to be worth it. Depends how much night driving you do. Maybe park lights, license plate lights, and dash lights are worth it.

Brakes, blinkers, reverse, and warning lights on the dash are used so infrequently I can't see them making any significant difference in FE.

But FE isn't the only reason. LEDs have at least 4 other advantages: they don't get hot like incandescents do, they last longer, they are even better at taking jolts and vibrations, and they operate faster. I've had enough cheapo plastic dome light covers, surrounding plastics mountings and housings, and sockets and wire insulation turn brittle from the heat that I feel LEDs are well worth it for that. Nice also being able to handle them without getting burned. Longer lasting is also very nice for those lights buried deep in the dash that are a huge pain to get at. Jolts and faster operation, nice, but no big deal. And the minuscule improvement in FE is nice too.

[MnFocus]

There are a few custom led headlight options available . Cant recall where or from who - but they are out there and they are Nice !

[mpg_maniac]

What about day-time running lights? Would they be worth it to change b4 they go bad?

[MnFocus]

I've seen a few owners that have totally replaced the 'city' light in their Euro style lamps with an led . I've personally never had that option of luxury . I believe on quite a few cars DRL's are just a standard bulb but at a lower power . Again never had the option of DRL's either . It's kind of false economy to replace a bulb that isn't bad though don't ya think ?

[VetteOwner]

some cars and trucks the DRL's are just a dimmed version of the highbeams (at liek 50% power or less)

[caprice]

:thumbdown: :thumbdown: :thumbdown: The 1157 led lights at autozone and pepboys are no good. Regular 1157's are 300 degrees or so of light, 90% or so of the light produced, is reflected to the reflector lens of the light fixture. These "ricer" type of led lights have a Very Narrow angle ((45 degrees), and little to no light actually hit the reflector, resulting in no light, other than a star. It is particularly hard to even tell your brake lights are working during the day! That is why they are Illegal! On the packages it says "for offroad use only" or "For show use only", so they can sell it.

Go to http://autolumination.com/matrix.htm scroll half way down to see what I am talking about.

I have bought Auto-zone led lights before and saw what it does. Also they don't work well with running lights in my experience. Had to throw them away. I've seen them on cars and trucks round here and it really hard to see their taillights. Get wide angle LEDs instead.

[caprice]

OEM Led lights or third brake lights?

[DracoFelis]

:thumbdown: :thumbdown: :thumbdown: The 1157 led lights at autozone and pepboys are no good. Regular 1157's are 300 degrees or so of light, 90% or so of the light produced, is reflected to the reflector lens of the light fixture. These "ricer" type of led lights have a Very Narrow angle ((45 degrees), and little to no light actually hit the reflector, resulting in no light, other than a star. It is particularly hard to even tell your brake lights are working during the day!
That just shows that there is more variance in LEDs than there are in normal car bulbs. I know for a fact that there are cheap/junk LEDs, and that there are also very good LEDs out there. Without a lot of standards, you have to shop very carefully for what you get.

For example, I went with the Luxeon 1157 modules from http://www.superbrightleds.com for my tail/brake lights (and I also used amber Luxeon modules for my turn signals). These modules aren't that cheap (I got them for $20/each, but now they are $25/each after a price increase). However, those modules have a 130 degree angle, and the entire 130 degrees sees light (and since that light comes from a single super bright LED, it is NOT a star pattern, but is instead a true cone of light). As a result, pretty much the entire car lens gets filled, and the light is actually BRIGHTER than stock 1157 bulbs (as long as you put a red colored Luxeon behind a red lens, thereby avoiding the light loss you normally get when you start with white light and then use a colored lens). So if you hunt around, you can get LEDs that actually work BETTER than the stock bulbs.

BTW: To get back to the OP's question, LEDs are a judgment call as to being "worth it" or not. They do help save electricity, and that does lower load on the engine, resulting in slightly better FE. But it's unclear if the extra FE will pay for the LEDs over the life of the car. But OTOH they also have other advantages, including almost never wearing out, potentially crisper easier to see light (depends upon the LED module used), etc. I remember my wife got two different "written warnings" about burned out lights, before we put the LEDs in her Civic (and part of the reason we did the LED upgrade, was to avoid having bulbs burn out in the future, and therefore forever more avoiding that hassle of having to prove to the cops that the light is now fixed). And it is true that a complete LED upgrade (except for the headlights) can be done for under $300 (I think I spent about $200/car) even with very high end LED modules. So it's not as if it's an extremely costly upgrade either.

[Mentalic]

Like Dracofelis pointed out, Led's are not all created equal. Some are very bright and others are so dim you can hardly see them in daylight.

Eventually LED's will be used everywhere including light bulbs for your house but I would not bother with them on my car unless you want them for style points.
Now on my boat trailer LED lights are awesome! I replaced all the original glass bulbs with sealed LED fixtures that are super bright and don't have a problem being dunked into salt water. Regular lamps on a boat trailer are one major pain to keep working, and I have not had to touch my LED setup for over two years now. Worth every penny!

[parasonic]

There are a few custom led headlight options available . Cant recall where or from who - but they are out there and they are Nice !Please find out who these people are and get back to me!

[minic6]

I replaced all the rear lights in my metro with leds. Not for FE but saftey. With regular bulbs the whole lens did not fill with light. Now with leds they do they are a full square. I also let them flash at the faster rate, people seem to notice them better. Do a search on the local auction site there are lots of types. The ones I bought have leds projecting in all angles. The industry is going to them for lots of reasons. One is there are lots of lights so you have more if one burns out. Also with the extreme elect. loads every little bit helps.

[MnFocus]

Please find out who these people are and get back to me!


Found the forum but can't find the posts about them . These guys are light/led nuts (http://candlepowerforums.com/vb/)

[caprice]

The matrix (http://autolumination.com/matrix.htm) style of led light bulb has 18 leds pointing up, but ONLY 6 to the sides. Seems to me you would want it the other way around. Otherwise the red light would be concentrated in a 1 inch circle, and not fill the whole reflector bowl so you see the whole light fixture lit up. OR does the red plastic lens bend the light so it is lit up??? There are many different led lights to choose from. I don't know which work properly. Could some of you who have led lightbulbs post a picture to show how it looks?