<span class="link_user">@Igrowneil</span>, tbh XS4000 very powerful on its own had it at 75% power...
2 would be perfect. I think you’re going to be ok with what you got.
IMHO nothing beats hps for overall bud density. LEDs will never be able to perform the same, I believe the leaf surface temp and mixed light in the wavelenght at a more stable level is what helps get the big fat buds. Efficiency is great with LED of course:+1: