Scooterman
Well-known member
The first link will explain some of the terms.
http://www.personal.psu.edu/faculty/s/b/sbj4/aquarium/articles/MetalHalideLamps3.htm
Hamilton 14K produce 69 ppfd
http://www.reeflightinginfo.arvixe....cap+250W+Electronic&Shielded=N+&Submit=Search
Reeflux 12K 51ppfd
http://www.reeflightinginfo.arvixe....cap+250W+Electronic&Shielded=N+&Submit=Search
Reeflux 10K is 85ppfd
http://www.reeflightinginfo.arvixe....tronic&Shielded=Select+Shielded&Submit=Search
Now these are all using Icecap ballast but regardless what ballast, you may do better or less but the ratio comparison is a big difference in PAR or ppfd
Now as far as your corals needs, research on each types you have will help determine what they will need, also remember you can locate more light demanding corals higher & have great effects. None if this is cut & dry, too many variables comes into play.
http://www.personal.psu.edu/faculty/s/b/sbj4/aquarium/articles/MetalHalideLamps3.htm
Hamilton 14K produce 69 ppfd
http://www.reeflightinginfo.arvixe....cap+250W+Electronic&Shielded=N+&Submit=Search
Reeflux 12K 51ppfd
http://www.reeflightinginfo.arvixe....cap+250W+Electronic&Shielded=N+&Submit=Search
Reeflux 10K is 85ppfd
http://www.reeflightinginfo.arvixe....tronic&Shielded=Select+Shielded&Submit=Search
Now these are all using Icecap ballast but regardless what ballast, you may do better or less but the ratio comparison is a big difference in PAR or ppfd
Now as far as your corals needs, research on each types you have will help determine what they will need, also remember you can locate more light demanding corals higher & have great effects. None if this is cut & dry, too many variables comes into play.