Quick Navigation OVERVIEWQuality of Light (PUR, RQE, PAS) Kelvin Rating Why is the Kelvin rating useful?Nanometer Range (Spectrum)LUX PAR (Photosynthetically Active Radiation) Measuring PARPhotoinhibition Lumens WattsCRIThe 5 Best led Aquarium lighting Systems1.Finnex Planted 24/7 LED Aquarium Controller2.Current USA Orbit Marine LED Light3.Finnex Stingray Aquarium LED Light4.Finnex FugeRay LED Aquarium Light5.Marineland Double BrightAdditional tips and tricks… (1 comment)