What’s the difference between an input of 110-240V 1.5A and 2A on a power supply?

Question

I’m looking to buy a power supply which output these qualifications: 24V 5A.

I’m looking at 2 different ones and one of them has a different input outage than the other at 1.5A, while the other has 2A.

In: Technology

Answer 1

The difference is 0.5 Amperes. One of the supplies is less efficient than the other, and thereby draws more current.

Alternatively, they could be nearly the same efficiency, but they specify the current draw in different ways. One could be quoting average and the other one quoting peak, for example.