This is an integrated LED tail light retrofit for the 2005, 2006, 2007, 2008, 2009 Suzuki Boulevard M50 with built in non-sequential yellow turn signals which are shown to be the most effective. All the internals of the stock tail light are replaced with a Custom LED circuit board containing 32 Ultra Bright Red LEDs and 32 Ultra Bright Yellow LEDs - compared to only 12 red LEDs on the stock circuit board. Just as on the other Custom LED models, the system is designed so that the red LEDs turn off (on one side) when the yellow comes on so that the turn indication is a pure yellow light. The unit automatically flashes between the red and yellow on the side youre turning! The Yellow LEDs are slightly offset as well, creating a dramatic attention grabbing effect. The engineering is solid and dependable, the looks are unbeatable, and the brightness is incredible! Dont waste your time with half hearted solutions, do it the right way from the start, with Custom LED.