About: http://webisa.webdatacommons.org/356266749

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 light source is a light emitting diode or array of light emitting diodes and the has a wavelength of from 550 to 690 nm, more preferably from 600 nm to 680 nm, even more preferably from 625 to 660 nm.2008-09-04
http://www.w3.org/ns/prov#wasQuotedFrom	faqs.org