Before I purchase my Switch, do I need it with POE+ if im going to use a VoIP? The explanations I read sound very confusing. Please help.
not likely, most common devices that require the extra power are: PTZ's and High Powered Access Points.
iirc its like 15.5W for normal PoE, 25W for PoE+.. fixed cameras, even with alot of IR max out ~10W, most run 4W-8W on average.
maybe if you were planing on using a few high powered IR illuminators over 15W and run them off PoE.
most popular cameras here that need PoE+
Huisun Bullet PTZ = 18W
Dahua Black Face PTZ = 24W
Look at the total output the switch allows. Even with a POE+ chances are you won't get + on all 8 of an 8 port switch.
8 PoE Ports with a Budget of 120W = 15W per port, if loaded up to capacity..
probably wont be a problem tho, my 7 IPCameras draw about ~80W of power and a few are PoE+ PTZ's.. calculate your loads