Green Lantern vs Ironman?

Ironman can defeat Green Lantern. "Ironman" is very smart and would be able to draw out the battle long enough so that the Green Lantern would run out of energy (he has to charge up his power ring). That route would take too long, however, so Ironman could easily construct a new suit that was all yellow or just cover himself with yellow paint and thus make the power ring ineffective (because the ring does not work on yellow things) and that would give Ironman the opportunity to bash the Green Lantern to the ground.