They are 24-port PoE and PoE+ switches. $10 each. One has 10/100 LAN ports with two gig uplink ports, the other has 10/100/1000 LAN ports and four gig uplink ports. I figure for IP camera duty the 10/100 unit will still be just fine, given the gig uplink ports.
They both have 370W PoE power capability. 15W per port or the one with PoE+ can do 30W on up to 12 ports.
Draw is 30W at idle on the PoE and 40W at idle on the PoE+. Of course, that's just sitting here doing nothing other than me presently looking at the nifty web interfaces and trying to navigate Cisco's website and qualifications for downloading high encryption-type software.
Looked at a brand new Ubiquity 24-port PoE. It lists 32W power consumption (not including PoE). These here I just bought for $10 each seem in the same ballpark for power draw. They do have commercial grade fans...so they won't be in the livingroom. But, that was never the place for them to go anyway.