I found these sites and more info on LED lightin' by doing searches on the Web not just this forum.............less then $20 bucks for the one but it is NOT plug in play for H-D so you have to hard wire it

this is for the from the first link :

"This unit is guaranteed to replace any two-wire flasher relay and operate at the normal DOT blink rate for motorcycles with stock blinkers, LED blinkers, or any combination of both, provided the total load on the systemis within 0.05A to 10A (0.6 Watts to 120 Watts!) - which basically covers the majority of blinker products on the market!
NOTE: In some rare instances, when there are NO incandescent loads on the blinker system (LEDs front and rear), one pair of our Stage I Load Equalizers will also be required to prevent a wide range of blinker problems. These problems are all associated with a lack of resistive load on an all-LED blinker system that was designed for incandescent lamps. Problems such as, but not limited to: the 4-way blink problem (both sides blinking at the same time), the no-blink problem, and Integrated LED Tail Lights staying in "blinker mode" due to non-zero blinker voltages."

http://www.customled.com/products/fl...FQ_yDAodBE_PNQ

or you could make your own ...............

http://forums.linear1.org/index.php/topic,325.30.html

here's another one I found in someones post but not sure which site ......but it cost more

http://www.motorcycletech.com/flasherpage.html

I am not advertising or saying buy these products that is up to you !!!