Does POE voltage need to match exactly?

[Nocturn]

I am setting up a network of Aruba AP22 at home, and some of them are unable to run of the router's power supply. 

All of the POE injectors available for decent prices in my region are 48v one's, but Aruba puts 57v as the requirement.

I connected one AP to that injector and seems fine, is there any danger in using them or no?

[Falcon1986]

3 hours ago, Oblivion_Creature said:

I am setting up a network of Aruba AP22 at home, and some of them are unable to run of the router's power supply. 

All of the POE injectors available for decent prices in my region are 48v one's, but Aruba puts 57v as the requirement.

I connected one AP to that injector and seems fine, is there any danger in using them or no?

The AP22 requires 802.11f PoE which is between 44-57V and at maximum, 10.1W.

 

It should work OK using the 48V injectors, but you might hit a antenna output maximum if you configure it to it's highest settings or overload the AP with too many wireless clients.