good gpw

Hello, first post here. A friend and I are thinking about going in on a grow room thats 3x3x6, he has a strain "Cali Tahoe" that yielded 22 gs with 1 month veg with a 18 watt light, 90 days flowering with 2 9 watt led (60watt equivalent) and no grow tech's and 20 inchs tall, we are thinkin about...