More W power you got , better for your plants, (Im using 2x200W + 2x125 W 6400K clf) in/out exhaust is a MUST,fresh air and all that:D Pots are up to you, for clones Im using 2gl pots,bigger they are - better, more root space 8) And if your doin soil grow, yes you will be hand watering them, or...