Wow, a light!
This is a Sonic themed wall or possibly counter top light for a store. Very uncommon! A light fixture with Sonic sure is interesting to see. It has a shiny silver border, generally square shape, and curved white panel. There's a full color/shaded finger waving Sonic art for the light panel, along with the Sega logo. The base is a simple blue rectangle to match. It looks like it could also be wall mounted (flat on the back), as well as sit on a counter. The white cord with switch behind it gives you an idea of how big it is, which is 'fairly'. Though it's meant for store use, it would be an excellent fixture in a home or Sonic room! It's clean line, and has lots of classic Sonic style. Because it was for retail use, it's likely there aren't a lot of these around now (not a lot made).