CREE XP-E2 Red

This is the update to the XP-E line based on Cree's new silicon carbide wafer. The LEDs now have a lower voltage and got a bin bump, meaning that they emit more light and take less energy to do so.   The XP-E2 red should be used over refugiums or algal turf scrubbers (ATS) in combination with our 660nm deep red, use one red for every four or so deep red, and one 430nm hyper violet.