flickering

Ok guys, fix one issue and another pops up. Maybe this one is no big deal but I noticed that my tail light flickers when I start the bike and grows brighter as I rev it up. It's a new LED tail light if that helps the diagnosis. I never noticed it before but I have the bike parked next to a wall...

I have a 91 with 36,xxx miles, the lights don't have a steady glow. This is all the lights, and the pulsing changes with rpm, higher rpm's means faster pulsing. It is not dramatic, but definately noticable. I have received lots of help from this forum and am looking for some more. Thanks.