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Thread: LEDs for 3rd Brake Light

  1. #1
    My Village Called 0l33l's Avatar
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    LEDs for 3rd Brake Light

    Idea: Convert ugly third brakelight to LED while also reducing rattles.

    How: Remove third brakelight. Get LEDs. Run wires. Done. (That's the idea atleast)

    Parts: I used 10mm 5000mcd LEDs I got from Ebay.
    Code:
    Product Description
        * Emitted Color : ULTRA RED
        * Size (mm) : 10mm
        * Lens Color : Water Clear
        * Peak Wave Length (nm) : 640 ~ 645
        * Forward Voltage (V) : 1.8 ~ 2.2
        * Reverse Current (uA) : <=30
        * Luminous Intensity Typ Iv (mcd) : Average in 5000
        * Life Rating : 100,000 Hours
        * Viewing Angle : 20 ~ 25 Degree
    
    Absolute Maximum Ratings (Ta=25&#176;C)
        * Max Power Dissipation : 80mw
        * Max Continuous Forward Current : 30mA
        * Max Peak Forward Current : 75mA
        * Reverse Voltage : 5~6V
        * Lead Soldering Temperature : 240&#176;C (<5Sec)
        * Operating Temperature Range : -25&#176;C ~ +85&#176;C
        * Preservative Temperature Range : -30&#176;C ~ +100&#176;C
    Before:


    The LEDs:




    Sodered:


    After:


    Problems: Need to be lined up perfectly. Need a case.
    Want to use the material these guys used on the bottom for the diffuser:


    [Edit]:
    This is a great LED calculator.
    Shave LEDs

    Current Status 1
    Current Status 2
    Current Status 3

    The 10mm 5000mcd LEDs are NOT bright enough unless they are looked directory on.
    Use 10000mcd s-flux LEDs.

  2. #2
    Maximum Bitrate binary.h4x's Avatar
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    in the description you stated that you used 10 LED's, I only see 5 in the pic. How many did you end up with?
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  3. #3
    Maximum Bitrate MaleBuffy's Avatar
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    You know you could just buy a led brake light very cheap do you?

  4. #4
    My Village Called 0l33l's Avatar
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    Quote Originally Posted by binary.h4x
    in the description you stated that you used 10 LED's, I only see 5 in the pic. How many did you end up with?
    10mm

    For the dumb americans: that's 0.393700787 inches

  5. #5
    My Village Called 0l33l's Avatar
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    Quote Originally Posted by MaleBuffy
    You know you could just buy a led brake light very cheap do you?
    I'd rather make one myself

  6. #6
    Maximum Bitrate binary.h4x's Avatar
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    Quote Originally Posted by 0l33l
    10mm

    For the dumb americans: that's 0.393700787 inches
    i r teh reading n00b
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  7. #7
    My Village Called 0l33l's Avatar
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    Quote Originally Posted by binary.h4x
    i r teh reading n00b
    Its ok

    BTW: I've got 100 of those LEDs. Got mine for $15 shipped
    15 cents a LED.... can't beat that

  8. #8
    Variable Bitrate anky1's Avatar
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    0l33l, I'm interested where you ordered LEDs from...
    RIP 1993 civic sedan
    RIP 1993 civic Del Sol

    Hello! VW Golf 1.8t

  9. #9
    My Village Called 0l33l's Avatar
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    Quote Originally Posted by anky1
    0l33l, I'm interested where you ordered LEDs from...
    ebay
    He had one acution for $12 with like $7 shipping and one for $15 shipped. You can figure out which one I got.

    I think I'm going to be overvolting these LEDs a bit. Instead of giving them 2.2v, I'm probably going to be giving them 3v. Anyone want to advice agains this?

  10. #10
    Variable Bitrate anky1's Avatar
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    thanks for the link 0l33l just ordered 100 for myself... I appreciate it

    Shameless plug: check out my thread again for new hardware and screen molding!
    RIP 1993 civic sedan
    RIP 1993 civic Del Sol

    Hello! VW Golf 1.8t

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