obviously the more the merrier! I would get 4 of the 2700k's 2 double socket assemblies and the single 6500k mogul base socket. U should have about 16000 lumens for flower and 11,000 for veg:thumbsup: all for about $160 You just need to wire up the sockets which is very simple. Let me know if u need help, u can buy short extension cables and cut the end off and use that.