I recently bought these two control line planes from this guy. I'm not sure how old they are or anything else about them. They lock similar, but they are different. They were both made by two different companies. When I asked him about it he was trying to tell me a bunch of bs. If you can see the 2 holes near the front of the plane, he told me that they were lights that tell you how much fuel there's left. That is obviesly wrong. So anyway, if you anything about these two plane please tell me. It would be great.

I think a few photos are definitely needed here. I've never seen any C/L plane with any sort of lighting system to monitor the fuel supply though.
Most C/L planes are just flown until the fuel supply is exhausted.