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Retrofitted LEDs on tailight of my P150 Classic

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  • fayad555
    replied
    Originally posted by pradyumna View Post
    first of all, i would like to thank you for welcoming me. Secondly, as abhi told already it can be controlled by using preferred value of resistance.

    Yes, I agree with your point but, complicating it and achieving what i have stated will attract more eyes and less LED's can do the job. It will be as an OE product which works alike new model pulsars and apaches
    do u know the setup in RTR/Pulsar? Is it the same leds glowing with different brightness?
    Originally posted by rahuldevnath View Post
    Yes, easily.

    Abhi, these LED are available as single units as well as LED strips, which is what we require for Indicators.

    What we get is a strip with pre fetched resistor connected in series to 3 LEDs of about 3 inches. The strips can be bought like 1 Meter and then cut into 3-3 inches to suit our needs.

    They are much brighter and more reliable as well. No PCB required, these strips have adhesive and are available in water-proof as well non-waterproof versions. So you can cut 3 X 3 inch strips (9 Leds) and paste it in 3 rows, and connected in parallel.

    The cost is about 300 bucks for 1 meter strip (60 LEDs)

    I think, I will do the change to my indicators in a day or two.

    Checkout the pics.
    but what if i want to use these leds in a different design(not like strip) in a pcb, can i solder them in a pcb?
    Thanks for the info'

    Leave a comment:


  • rahuldevnath
    replied
    Originally posted by abhijeet080808 View Post
    Ok, thanks for the info. So its not too costly then. Great! Do make up your indicators. But the blinking rate may go up with the stock flasher. You may have to use a dummy resistor to slow it down.
    Yes, the flashing rate will go up.. but I don't know what will be the effect this mod on BCU loaded Pulsars.. let's see

    Leave a comment:


  • abhijeet080808
    replied
    Ok, thanks for the info. So its not too costly then. Great! Do make up your indicators. But the blinking rate may go up with the stock flasher. You may have to use a dummy resistor to slow it down.

    Leave a comment:


  • rahuldevnath
    replied
    Originally posted by fayad555 View Post
    Are these smd leds available in the market??
    Yes, easily.

    Originally posted by abhijeet080808 View Post
    What are their cost like? If the costs are similar, its is certainly better then normal LEDs.

    @fayad555 - PCB is a must if you want an evenly spaced arrangement that looks professional.
    Abhi, these LED are available as single units as well as LED strips, which is what we require for Indicators.

    What we get is a strip with pre fetched resistor connected in series to 3 LEDs of about 3 inches. The strips can be bought like 1 Meter and then cut into 3-3 inches to suit our needs.

    They are much brighter and more reliable as well. No PCB required, these strips have adhesive and are available in water-proof as well non-waterproof versions. So you can cut 3 X 3 inch strips (9 Leds) and paste it in 3 rows, and connected in parallel.

    The cost is about 300 bucks for 1 meter strip (60 LEDs)

    I think, I will do the change to my indicators in a day or two.

    Checkout the pics.

    Leave a comment:


  • pradyumna
    replied
    Originally posted by fayad555 View Post
    @pradyumna, hey welcome to xBhp...

    I was having the same thing thing in mind, ie same set of LEDs glowing with low and high brightness for park and stop signal lights.

    If we connect both park and stop lights into same leds, then while applying brake with park lamps ON, more current would pass through the leds and it may blow off. But we can design the circuit such that even at this extreme case the leds wont blow off but the brightness would be lower for both park and stop lights functioning independantly.
    Also there would be 3 brightness levels.

    So is there any way to overcome this problem?
    first of all, i would like to thank you for welcoming me. Secondly, as abhi told already it can be controlled by using preferred value of resistance.

    Originally posted by abhijeet080808 View Post
    Maybe its possible to do so with proper use of resistors. But, its easier to use two separate rows of LEDs.
    Yes, I agree with your point but, complicating it and achieving what i have stated will attract more eyes and less LED's can do the job. It will be as an OE product which works alike new model pulsars and apaches

    Leave a comment:


  • abhijeet080808
    replied
    Maybe its possible to do so with proper use of resistors. But, its easier to use two separate rows of LEDs.

    Leave a comment:


  • fayad555
    replied
    @pradyumna, hey welcome to xBhp...

    I was having the same thing thing in mind, ie same set of LEDs glowing with low and high brightness for park and stop signal lights.

    If we connect both park and stop lights into same leds, then while applying brake with park lamps ON, more current would pass through the leds and it may blow off. But we can design the circuit such that even at this extreme case the leds wont blow off but the brightness would be lower for both park and stop lights functioning independantly.
    Also there would be 3 brightness levels.

    So is there any way to overcome this problem?

    Leave a comment:


  • pradyumna
    replied
    I am too late to community. Hats off to abhi. I have got one more idea, can we use a single LED with two filaments (the one which has same ground point and two different leads for the positive) off course both should emit red color. So that by connecting one lead to the parking light circuit and controlling the voltage we can make it dim and other lead to the brake light circuit and providing more voltage to it we can make it glow brighter. By doing this we can use complete space available in the tail lamp for illumination. And one more suggestion, we can use reflection tape on the circuit board to make it look more brighter. The small LED's used in cell phones are much brighter i guess. Correct me if I am wrong in any piont of my view. I am still a newbie.
    Last edited by pradyumna; 03-01-2010, 10:48 PM.

    Leave a comment:


  • fayad555
    replied
    Originally posted by abhijeet080808 View Post
    @fayad555 - PCB is a must if you want an evenly spaced arrangement that looks professional.
    yes...
    what i told is that a custom fabricated pcb with points in required places would be better than a normal dot pcb, if i need to place the leds in perfect round shape.

    Leave a comment:


  • abhijeet080808
    replied
    Originally posted by rahuldevnath View Post
    After working with SMDs I can suggest SMD LEDs for the purpose. In a single indicator unit more than 50 units of SMDs
    What are their cost like? If the costs are similar, its is certainly better then normal LEDs.

    @fayad555 - PCB is a must if you want an evenly spaced arrangement that looks professional.

    Leave a comment:


  • fayad555
    replied
    Originally posted by rahuldevnath View Post
    After working with SMDs I can suggest SMD LEDs for the purpose. In a single indicator unit more than 50 units of SMDs
    Are these smd leds available in the market??

    Leave a comment:


  • rahuldevnath
    replied
    Originally posted by abhijeet080808 View Post
    looks good... the indicators will not take that many LEDs though.. simply not enough space!
    After working with SMDs I can suggest SMD LEDs for the purpose. In a single indicator unit more than 50 units of SMDs

    Leave a comment:


  • fayad555
    replied
    Originally posted by Alok Sam View Post
    Bro, can you post a pic of your bike's tail lamp.. Let me see if I can suggest you something..!!
    i have attached a picture...

    currently the design in my mind is simply two rings of leds like the one in cbr150, but if i go with that design i need to fabricate a pcb, as we cannot place the leds in perfect round shape in the normal dot pcbs.

    Leave a comment:


  • karthik_R
    replied
    Most of the threads in this section should really belong in the DIY section...

    Leave a comment:


  • Alok Sam
    replied
    Originally posted by fayad555 View Post
    good, but i 'm having a unicorn and this wont suit, as the tail lamps are bigger..i was thinking of a design like the cbr150's for my unicorn. Its not led, but a similar design with leds...
    2 strips alone might look good for the indicators...


    Bro, can you post a pic of your bike's tail lamp.. Let me see if I can suggest you something..!!

    Leave a comment:

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