About: http://webisa.webdatacommons.org/369694448

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Preferably, the controller 40 comprises a microcontroller, or other logic circuit or state machine, that monitors the voltage across the cathodes 36 and controls the switching device 42 according to preprogrammed operations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com