Outdoor PoE switch has two power supply standards, IEEE802.3af and IEEE802.3at.
The most common camera power on the market is 7W, using the af standard PoE switch. If the camera is more than 16W, you need to use the at standard PoE switch. If the camera power is more than 30W, the need to use a dedicated PoE injector.
In addition, you need to look at the total power PoE switch. General support for the af/at standard PoE switch, its power supply is adaptive.