When you use the power adapter is hot that you think, don't worry about it.
For the hot, we have do a high temperature test
about the power temperature until 60°C is normal for this power when you use it,
and when the power temperature run up to 75°C the power supply will
automatically power off until the temperature become normal then the power will can use ,
and the use environment keep room temperature,
the power temperature shows 0°C~70°C is normal If there is any problem