I’m a Viparspectra fan. The Viparspectra PAR1200. It would work for a 4x4 area. But as @dbrn32 pointed out go with a HLG light. You will be thankful for it.
I did produce killer Bud with my Viparspectra PAR600 Light. And I mean killer bud. But the ovrerall total weight is better with a HLG light.