About: http://webisa.webdatacommons.org/233192538

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	These assemblies include a converter, or ballast unit 12A-12N which converts the primary A.C. input to a high frequency, such as 20-30 kilohertz, to drive a set of typically two series connected fluorescent lamps.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca