I am currently using two California lightworks solar system 550's and the California lightworks solar system far red 100w all the loghts are controlled with one touch screen controller with options like sunset sunrise mode and ability to adjust the spectrum like an equilizer. Next grow i will be adding the California lightworks UVB. This is in a 4x8 tent. This is my first Grow attempt since losing my origional first grow to a fire. Just hit flower yesterday.