About: http://webisa.webdatacommons.org/310452619

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	The light source 14 may be of any convenient and desirable form; however, the presently preferred device for performing this function is a light emitting diode.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com