Bill, they are "million color lights" has a crapload of settings and color combinations, can make it one color, have like 20 to choose crom, then you can make those colors pulsate or flash, or you can set it to do colors randomly in a pulsing pattern or changle colors slowly. hope that makes sense. handy thing is it has a remote, so no buttons on the bike and you can cycle thru the colors with the remote, as well as speed up or slow down the pulses or keep em continious. personally i think it looks really cool at night, and besides looking good it serves a greater purpose of keeping the cars from hitting me at night. Richardson Yamaha has em on sale for 179 i think. i got jipped and bought mine at Strokers for 212 with tax.