On high power?

Does "On high power" mean "Under the influence of 100% power"?

Background info:

The magnetron inside the oven converts ordinary electric power from a wall
socket into very short radio waves (around 4 inches from crest to crest). They are
transmitted by the oven!¯s magnetron at a frequency of about 2450 Megahertz.
At that frequency, power is readily absorbed by water, fats and sugars,
resulting in very fast vibration and high temperatures that cook the food.
On high power, the food is subjected to the highest amount of microwave
energy because the magnetron produces microwaves at full capacity. To
produce a power level less than high (100%), the magnetron cycles off
and on. For example, medium power (50%) means that the oven produces
microwaves 50% of the time and is off 50% of the time.
Foods best to cook on high power are basically tender foods and those with
a high moisture content such as ground beef, poultry, vegetables and fruits.
Eggs, cheese and solid meat can toughen when microwaved on high. They
are best cooked on reduced power. Large cuts of meat should be cooked on
medium power (50%) for longer periods. This allows heat to reach the center
without overcooking outer areas.