i'd go with more than 600w in a 5x5.
I'd go with the chilled tech 1000w, mammoth LED has a 800w. if i was gonna get 600w i'd probably still go with Chilled, Thinkgrow or Gavita
Growcraft Light Spectrum Options Passive Cooling Linear Bar Design Thin Profile – Only 1.375in Tall Rugged T Slot Bar Design Oversized surface area for maximum heat dissipation Remote Power Driver Location Lower your heat load by removing power driver outside grow area...
chilledgrowlights.com
10 Bar Led Grow Light - ETL Listed - Mammoth Lighting has been developed by indoor growers over many years of careful experimentation and testing. Scientifically engineered to deliver the highest level of PAR output and balanced Coverage in the LED grow market. The Mammoth LED grow lights are...
mammothlighting.com