Using LED bulbs in typical T8 fixtures means(?) the transformers are still in the circuit, and if so, seems to me that negates some of the power/heat/reliability savings LED's are intended to provide.
Most of the time when you retrofit LED tubes into an existing T8/T12 fixture the instructions direct you to re-wire the hot feed it directly to the lamp holders (tombstones). Cutting the old flourescent ballast out of the circuit.
