Recommended to use High PoE Switch to PoE Extender.
Example of Power calculation like image 1:
Loss of produce energy per. 100m cable: about. 3w, x 4 = about. 12w
Consumption of power, per. PoE Extender: about. 5w x 2 = 10w
Consumption of power max per. alm. Camera = Max 15w x 2 = 30w
Total = 12w + 10w + 30w = 52w, so that will be able to use High PoE Switch: "AW-FED-0500-65" (65W)