About: http://webisa.webdatacommons.org/56767715

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 emitting device is an LED, preferably operating in the non visible part of the electromagnetic spectrum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com