Query Approved

Hi Kuria,

I am currently working on converting my P220F turn signal lights into LED's.

I had seen some of them on eBay, but that listing no longer exists. I bought some LED flashers, which fit neatly into the indicator enclosure, but are white LED's. Like with your RTR, P220 also has clear lens indicator with Amber bulbs, so it really doesnt go well with it.

The LED flashers dont flash but give out a strobe effect, like that of a camera flash, flashing in quick succession, or like the ones on police cars as seen in western movies or the strobing lights on safety cars in F1 motorsport.

I am working on 3 types of indicators - All LED's - but of different LED types and Amber color only. They are not a direct fit, as far as the wiring is concerned, but they fit the enclosure dimensions well.

BTW, I have always noticed the same old design, of motorcycle turn signal indicator lights, sticking out from the front and rear sides of all motorcycles, like sore thumbs?

Cant we employ a totally different concept/design with LED's? Why stuff the LED's in the same enclosure? Think out of the box. I am working on it. Will keep you posted.

bhai, you can use this calculator for the setup.

LED series parallel array wizard

Thanks Jawad, that link was very informative and useful.

-Build a 555 timer circuit with transistor amplifier. costs Rs.30
-Get a PCB cut it in the shape of indicator holder and solder LEDs on PCB.
-Remove old flasher/indicator relay and put your circuit.

Needs lot of time, soldering skills, patience.

the led indicator flash very fast as they are installed without changing the flasher unit . the flasher unit is designed for the 20w halogen bulbs and because leds hardly use a few watts it flashes very fast . if we change the flasher unit to a load independent one then the fast flashing problem can be solved . the yamaha led indicators also come with a new flasher unit to replace old one .

@kauria - readymade ones are also available but the good quality bright ones are bit expensive

This is where your own circuit made of 555 timer IC helps. you can select the number of flashes per second by varying the resistor and capacitor values. The circuit is also very simple to build and reliable also.
555 can handle 200mA of current so atleast 10 LEDs can be lit up. so make 4 ckts for 4 indicators or simply use a n-p-n transistor to support all the LEDs using 1 circuit.
I made this ckt longtime ago, but not for the bike. Will apply it to the bike and give the results soon.

do update us as making it ourself will be very cheap . the led flasher units ready made cost 7-10 $ .

why don't you install a resistor in parallel? its not an efficient way but it does the work.

Hi Puneet, what I meant was, these are actual LED flashers and the LED's used are those that are used in SMD LED FLASH in mobile phones. I tested them using power from an 12V 5Amp LED Driver.

Agreed, the 555 IC has scores of applications and flasher is one of the most basic circuits I learnt in school.

I bought my flasher circuits for Rs.150/- and Rs.200/-

Resistors in parallel will dissipate too much power and heat up and will need to be atleast 5-10W rating. Thats criminal waste of power from a 12V 9Amp battery.

Will post my results soon.

Yes, I was talking about this bulbs, where I will get those in India. What could be the price.

anything came OUT of the box?

PM navnish. He will get you the same kinda LED's.
You can track him in the AC/DC conversion and Let there be light thread!

Use this for building the circuit..
Circuit Simulator Applet

Thanks for sharing the link. Very useful.