Chow_13answered grow question 3 years ago I would go with either Mars hydro(fc series) or spider farmer(see series). Both produce good lights, and are very energy efficient. The new bar style lights are great for scrog as they have a more uniform light spread.
You could go with the older quantum board style. Which work really well but have a hotter spot in the center.
Stay AWAY from purple lights. Oldest tech and not worth it.