About: http://webisa.webdatacommons.org/127376149

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	I am not highly confident that I know the real benefits - however I do have mine set to center metering just so that I can point the center on some sort of neutral green in the tank and balance my light meter based on that.
http://www.w3.org/ns/prov#wasQuotedFrom	plantedtank.net