Funny, at one point I had the same problem intermittently and actually changed the default name to “Living Room Fan LAMP”.
@dalec used Google Home and did not have the same problem so we changed it back to LIGHT. When I tested it again with Alexa, it I couldn’t replicate the problem so we left it as “light”.
I believe the problem is that the Echo is blind to the word “light” to make it simpler for the end user. That way if we have a device named “overhead lights”, we could say “turn off overheads” or “turn off overhead lights” and it would process them the same.
If all else fails, try renaming the light component to something like “Lamp” and let us know.