It'll replace gas lamps!
Lightning Channels have been placed in various places around Lightning Ledge, presumably by Leyden Copperkleist. Within them can be found Charged Condenser Jars that hold lightning within them. The Condenser Jar is an objective of 
[30-35] Lightning in a Bottle.
Patch changes[]
Patch 4.0.3a (2010-11-23): Added.