Question about LED tail light replacements.

[Bullitt-]

Here's the recipe

[dodj]

 :thumbsup:Thanks for the pic/specs Bullitt!
It still amazes me - anyone asks a question and you can supply pics, specs, prices and where to buy it!!

[brads70]

:thumbsup:Thanks for the pic/specs Bullitt!
It still amazes me - anyone asks a question and you can supply pics, specs, prices and where to buy it!!

  amazing!
Still a little out of my league though. Electronics is not my strong suit! The sequential part is cool too! I  too read the part about using red led's behind a red lens but I don't know? I don't want to be the guinea pig?

[dodj]

amazing!
 I  too read the part about using red led's behind a red lens but I don't know? I don't want to be the guinea pig?

I have a  red 1157 12led light that I bought to test with (Can Tire - $13) I put it in the front turn signal housing (in the valance) and the resulting visible light was red with a slightly orange tinge. The same red led in the tail/turn lens was a very bright red- nice. But because the light is installed in the vertical position facing the top of the housing rather than facing to the rear through the lens, it's not ideal. Same for the b/u light but it made it red instead of white.  Rule of thumb, buy the led colour that matches the lens colour.

[brads70]

I have a  red 1157 12led light that I bought to test with (Can Tire - $13) I put it in the front turn signal housing (in the valance) and the resulting visible light was red with a slightly orange tinge. The same red led in the tail/turn lens was a very bright red- nice. But because the light is installed in the vertical position facing the top of the housing rather than facing to the rear through the lens, it's not ideal. Same for the b/u light but it made it red instead of white.  Rule of thumb, buy the led colour that matches the lens colour.

:2thumbs:Very cool thanks for posting! So the ones on e-bay with the white LED's wouldn't be ideal then?

[dodj]

I think it would work great for the reverse light. Not sure about the tail/turn light though. A white led through a red lens might work. I have a white led flashlight, I'll find it and shine it through a red lens and post the result later this evening. I'm going to see 'Larry the Cable guy' tonight so it will be a bit late.

[bb71challenger]

I get the R1 value because that is how resistors are identified, by their ohm rating. What are the values of R2 and R3? Are they supposed to be 33k and 15k ohm? Giving them a current identification (R) is confusing to me. I am talking about the diagram btw.

[Bullitt-]

I get the R1 value because that is how resistors are identified, by their ohm rating. What are the values of R2 and R3? Are they supposed to be 33k and 15k ohm? Giving them a current identification (R) is confusing to me. I am talking about the diagram btw.

Read the NOTES... I am going to consult with some of my EE friends after & determine the load.

[dodj]

According to the notes, R= .6/I  I being the led's max current rating. 15 and 33 is the multiplier of 'R' to create min and max brightness for turn/brake illumination.

[bb71challenger]

I was mistaken anyway. R is for Resistance so I jumped to conclusions anyway.

[ntstlgl1970]

once you figure out what you want, check with digi-key or mouser for the actual parts. You will get much better pricing from those guys than any of the "led" websites once you know what you are looking for. Especially since you would be buying LEDs and other components in bulk. More than likely the led websites buy from these guys anyway,.

[bb71challenger]

Read the NOTES... I am going to consult with some of my EE friends after & determine the load.

Where in your NOTES did you state that you are going to consult with an electrical engineer on the load value? I was merely asking a question, not looking to get my head lopped off.

[brads70]

  This all SO over my head already? Is it difficult to make it sequential too?
Would anyone be interested in making a kit for the 70 Challenger with a sequential design?  So for the red lense area we need red led's? Back up light white led's? How would it fasten to the tail light housing? Just a tight fit?
So who is up for the challenge?

[bb71challenger]

I think the 70 Challenger would lend itself to the sequential sequence very well. The back up light is in the middle and so it leaves quite a long stretch of red leds, I bet a 4 section sequential sequence would look killer. Heck even 3 would look awesome. My 71 tails have the back lights in the middle so I am thinking it would look kind of odd with a sequential pattern.

[Bullitt-]

Where in your NOTES did you state that you are going to consult with an electrical engineer on the load value? I was merely asking a question, not looking to get my head lopped off.

      I didn't ...the notes tell the R story    No Head Lopping intended