Expensive or cheap?
You want tons of control or simple on or off?
At the end of the day, light is light.
I grow everything with cheap Chinese black box running silent and for 7 years now, but, only control of intensity and time.
$100 per light in comparison to $500 or more per light.
or you can go the luxury direction and price out 3 gen 6 radions XR30's or the appropriate number of Orphek fixtures. It really comes down to features, options, appearance and what you want to grow.
I am very happy with my Gen5 Radions but they sure aren't giving them away and thinking of the day they need to be replaced haunts me