Half load is not that half of the load, full load is full load? I am a novice, I hope the old chefs do not joke.
Half of the meaning is not reached the rated power is called half load.
Simple understanding, if the UPS rated output is 300W, full load refers to the UPS rated 300W, connected to the UPS above the load input power is 300W, half load is connected to your UPS above the load is 150W
