BRIGHT light, east-facing, above I-20WTraveling west-bound on I-20, between mile markers 30-40. Coming across the hill, a bright, white, light shown horizontally from a spherical object several hundred feet above the tree line and about a hundred feet behind a cell tower (I think it's a cell tower) that had a blinking red light. The light was BRIGHT--several times brighter than oncoming headlights. As I drove closer and under the object, the light was less bright which meant to me it was pointing horizontally, eastward toward Columbia. I didn't see any propellers or blinking side lights, which I looked for carefully. On the back of the object, there was a dim red light circle, but it was dim and barely visible. The best I can describe it is like a ring of LEDs being around a spare tire on a jeep--except the lights seemed continuous and dim. Because this was after sunset, I tried to locate a pole or suspension wires for the object (although there aren't any other objects at that height). It didn't! move, and appeared to be perfectly still.