Answering you , because I noticed that nobody answer you and I have the 2 Models you mentioned .
There are not the same camera . Similar but not the same . Just as example about features DCS 2332L has 2 way audio that the other one doesn't
Remaining features are similar . DCS 2332L seems to be more stable (FW) than DCS 2330L .
As far as I know this models are discontinued ones , so you should be thinking (Like my case in buying another brand for outdoors , besides the prices of this cameras were and are , out of the normal home consumer scope) . Hope it helps