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Discussion Starter #1
It's been a few years since anyone commented on LED tail light replacement.

I bought this red tail light pair from Amazon for $13 with free Prime shipping: https://goo.gl/djppSS
This is the title to search for in case the link goes stale: "LUYED 2 x 650 Lumens Super Bright 1157 3014 54-EX Chipsets 1157 2057 2357 7528 LED Bulbs Used For Tail Lights,Brake Lights and Turn Signal Lights,Red"

They plugged in and worked very well on my 74 Spider. Much brighter than the incandescent ones and of course at a lower wattage.

FYI, The first set of bulbs I bought on Ebay did not work for those of you that may try that approach.

The picture below shows new bulb on the right.
 

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Excellent. Anything that might deter people from tailgating our Spiders.

It's been a few years since anyone commented on LED tail light replacement.

I bought this red tail light pair from Amazon for $13 with free Prime shipping: https://goo.gl/djppSS
This is the title to search for in case the link goes stale: "LUYED 2 x 650 Lumens Super Bright 1157 3014 54-EX Chipsets 1157 2057 2357 7528 LED Bulbs Used For Tail Lights,Brake Lights and Turn Signal Lights,Red"

They plugged in and worked very well on my 74 Spider. Much brighter than the incandescent ones and of course at a lower wattage.

FYI, The first set of bulbs I bought on Ebay did not work for those of you that may try that approach.

The picture below shows new bulb on the right.
 

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So do your signals flash at the correct rate or faster? The higher resistance/lower current flow of some LED's causes the flasher relay to "think" there is a burnt out bulb. Also do your lights look red? I've seen some that are so bright they make the tail lights look pink.
 

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I bought an electronic flasher relay so I could use led bulbs. Trouble is now if one turn light is not working they still flash at correct rate. I had a ground corroded on front right. The only thing to watch out for is buying a bulb to big to put in housing hole. In my car everything is 1156 blub
 

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Discussion Starter #5
So do your signals flash at the correct rate or faster? The higher resistance/lower current flow of some LED's causes the flasher relay to "think" there is a burnt out bulb. Also do your lights look red? I've seen some that are so bright they make the tail lights look pink.
Hi Paul,
The flashing rate is the same as before. The red tail marker light and (brighter) red tail brake light look red to my eyes.

They are much brighter than stock and should increase visibility.

FYI, for those that have not changed these bulbs, there are no tools needed. Open the trunk and hand loosen the 4 protruding screws. The plastic lenses will come off the back end if gently tugged on.
 

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Hi Paul,
The flashing rate is the same as before. The red tail marker light and (brighter) red tail brake light look red to my eyes.

They are much brighter than stock and should increase visibility.

FYI, for those that have not changed these bulbs, there are no tools needed. Open the trunk and hand loosen the 4 protruding screws. The plastic lenses will come off the back end if gently tugged on.
Thanks for this timely update. I've been mulling over switching to LEDs on my Spider for some time and that bulb looks great. (Just put two LEDs in my other car's courtesy/map fixture and am delighted with the results.)

However, you mention tail/stop-brake lights, not turn signals, and tail/stop-brake lights don't flash.

An S2's rear bulbs, at least based on my memory, go from left (driver's side) to right (passenger side) as:

  • Left cluster turn signal
  • Left cluster tail/break light
  • Left cluster reverse/backup
  • Right cluster reverse/backup
  • Right cluster tail/brake
  • Right cluster turn signal
Did you do all four of the bulbs under the red lenses? That is, both the tail/brake and turn signal bulbs?
 

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Hi Paul,
The flashing rate is the same as before. The red tail marker light and (brighter) red tail brake light look red to my eyes.

They are much brighter than stock and should increase visibility...
Okay, the description on your bulbs says they are red. I tried some I got on Amazon that were white but they were too bright and also caused flasher to blink rapidly. I think I need red and amber LED's
 

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Guys, I was just about to order these, but the bulb application guide in the stickies specifies 1156 bulbs for our cars. These indicate that they are 1157 (double filament) . which is the correct light for our cars?
 

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Discussion Starter #9
Guys, I was just about to order these, but the bulb application guide in the stickies specifies 1156 bulbs for our cars. These indicate that they are 1157 (double filament) . which is the correct light for our cars?

The Red 1157 is a stop/tail lamp with 2 staggered side pins and 2 filaments. That is what I replaced above with LEDs.

The 1156 is used for the turn signals. It is a single filament, single contact bulb. The final color is amber/orange colored.
I haven't tried replacing that yet. The same manufacturer makes this bulb below which includes load resistors to address the fast flashing issue. Let us know if someone tries them:
https://www.amazon.com/LUYED-Lumens-Extremely-Chipsets-Brightest/dp/B01LZPSG4M/ref=lp_13499694011_1_13?srs=13499694011&ie=UTF8&qid=1481060004&sr=8-13&th=1
 

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Thanks for posting this.

I placed an order today for 2 x Red LED Tail/Brake lights and 4 x Amber Turn Signal lights (front & back), I'll report back early next week on the result
 

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Thanks for posting this.

I placed an order today for 2 x Red LED Tail/Brake lights and 4 x Amber Turn Signal lights (front & back), I'll report back early next week on the result
Earlier today I also ordered two of the red LED tail/brake bulbs.

I am very interested in your results with the amber bulbs, so please do report back.

Also, please check the heat thrown by these amber bulbs for which the seller states

Low heat generation ensures a longer bulb life
 

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Hi All,

There is another thread currently running regarding changing out bulbs in gauges. Dim gauge lights in 83 spider veloce. You may want to check that one out too. As for tail lights, the set that ihart bought should work well. You can get them even brighter, around 900 lumens, from amazon as well. The thing with LED's as far as color goes, you should buy the color for the lens you are using. A white LED with a red lens will wash out the color, as Kcabpilot suggests.

If anyone is interested, I also installed LED's in my parking lights for greater presence. I use them as daytime running lights as there are way too many aggressive/distracted drivers in Connecticut and if I'm going to get hit, I'd rather it be in my minivan than my Alfa. Check them out as well:

LUYED 2 X 1700 Lumens Extremely Bright 1156 4014 102-EX Chipsets 1156 1141 1003 7506 LED Bulbs,Xenon White(Brightest LED in market)

I put 600 lumen bulbs in the front turn signal lights and will also do the red and amber tail bulbs.
 

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LUYED 2 X 1700 Lumens Extremely Bright 1156 4014 102-EX Chipsets 1156 1141 1003 7506 LED Bulbs,Xenon White(Brightest LED in market)
I can't find these on UK sites but came across similar looking ones. However one of the reviews said "gets very hot when on constantly, keep away from plastic" ! The reviewer as a result was using them only in the indicators so it wasn't a problem as they weren't on long enough to get hot. Do your side lights get hot?

My understanding of LEDs is that they should run cooler so I was a bit surprised.

Also, I can't remember if the bulb pins are 180 or 150 degrees offset?
 

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I can't find these on UK sites but came across similar looking ones. However one of the reviews said "gets very hot when on constantly, keep away from plastic" ! The reviewer as a result was using them only in the indicators so it wasn't a problem as they weren't on long enough to get hot. Do your side lights get hot?

My understanding of LEDs is that they should run cooler so I was a bit surprised.

Also, I can't remember if the bulb pins are 180 or 150 degrees offset?
180 degrees. And LEDs *should* run cooler, except when they contain a resistor to activate a flasher relay. It would be better to buy ones without the resistor, and just get the electronic flasher relay. Or put your own resistor in-line, just away from the plastic lamp housing.
 

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EQUIVALENT LEDs run cooler than their incandescent counterparts but that's not what we're talking about here. Stock bulb is 21w which puts out ~120 lumens. An equivalent LED would be only 1 or 2 watts, so 10 or 20 times cooler. But here we're talking about putting in a 1750 lumen bulb - 15 times brighter (I agree it's good to be seen, but holy crap!). I didn't see a wattage for that lamp but I think it'll be around 20w - same as the original more or less. LEDs concentrate their heat in a smaller area so they can have heat dissipation problems. If you get LED bulbs for your home they'll often have big finned heatsinks on them to take care of this problem but these little automotive bulbs don't have that so yeah, they're gonna get hot.

I would think a 650 lumen LED would be more than sufficient (5 times brighter than stock) and not give you the heat problems of these eyeball burning 1750 or 2500 lumen bulbs. Putting a 1750 or 2500 lumen headlight bulb in would be illegal in most states. I'm not sure what the laws are on tail and turn signal brightness.

I ride bicycles a lot and get into a similar discussion about bikes. Yes, you really need to be seen for safety but I don't personally think blinding drivers is the answer (the answer to this I usually get in the bicycle community is "screw those cagers" - I reckon I might get similar comments about SUV drivers here).
 

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I would think a 650 lumen LED would be more than sufficient (5 times brighter than stock) and not give you the heat problems of these eyeball burning 1750 or 2500 lumen bulbs. Putting a 1750 or 2500 lumen headlight bulb in would be illegal in most states. I'm not sure what the laws are on tail and turn signal brightness.
I was thinking along the same lines. I like the idea of putting bright bulbs into the side lights and using them as daytime running lamps. I get very frustrated, though, by cars with overbright rear lights, particularly when queuing at my local level crossing for 10 minutes with the guy in front using his foot brake (and therefore brake lights) instead of the parking brake.
I think the overbright bulbs at the rear would probably be illegal over here but there isn't much chance of the police doing anything about it.
 

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Karl (on the AOC forum) is a LED expert and he's not keen on them being used in cars as they are very directional - he convinced me it was much better to make sure the connections are good, keep your reflectors clean and shiny and use standard bulbs, I fitted 20w "sidelight" bulbs and lined the reflectors on the sides and indicators with silver foil and they do shine pretty brightly - I would really like to fit a high level brake light but cant find any way of fitting one without it looking crass and ugly on my S2... any suggestions?
 

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The problem with an S2 is that there is absolutely nothing that could be considered "high" on the rear end of them. But maybe a little LED strip light on a tiny stalk coming up from the trim around the top? You can get some very compact LED systems that are quite bright. These guys have (perhaps literally) a million options: https://www.superbrightleds.com

edit: Brainstorming this a little. My first thought was a led strip right below the trunk lid. That would get it centered but still below the bumper height of a lot of SUVs. But you could make it fairly wide and I'm sure you could find a simple Instructables project for making it animated to catch attention. And didn't US S4s come with a trunk-lid mounted "pod" for a high mount? Like the one in this picture:

 

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EQUIVALENT LEDs run cooler than their incandescent counterparts but that's not what we're talking about here.
The assumption I was making was that the LED lamps would be brighter by some factor, but overall the overall power consumption would be lower. I was not even thinking about equivalent power consumption LED replacements. The idea of putting in bulbs that are 10x brighter than stock doesn't make any sense to me at all. 3-5x? Sure, seems reasonable. 10-15x? No way.

I would think a 650 lumen LED would be more than sufficient (5 times brighter than stock) and not give you the heat problems of these eyeball burning 1750 or 2500 lumen bulbs. Putting a 1750 or 2500 lumen headlight bulb in would be illegal in most states. I'm not sure what the laws are on tail and turn signal brightness.

I ride bicycles a lot and get into a similar discussion about bikes. Yes, you really need to be seen for safety but I don't personally think blinding drivers is the answer (the answer to this I usually get in the bicycle community is "screw those cagers" - I reckon I might get similar comments about SUV drivers here).
I don't know what the standard is here. I can't find a specific call out in the state law on-line. Plenty of stuff about headlights, but not too much about the other lights. And nothing at all about how bright they are.

Riding bikes is another story. I have commuted by bike in the past, and my idea was multiple steady and flashing red lights behind, one flashing white lamp on my helmet facing front, and two steady white lights on the handlebars to illuminate the road surface, one near, and one far. And never aimed up into car drivers' eyes. I rarely commute by bike any more, but I do appreaciate the folks who want to be seen. Contrasted to the fool the other day who was wearing dark clothes, had no reflectors at all installed anywhere on his bike, and was saved from being crushed under my wheels by the fact that his tires had some reflective logo, and his shoelaces were white.
 
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