Depending on how many plants you want to grow and in what size of an area. If you wanted to do a good SOG with 20plants, I would suggest 2-3 400w lights.
Joel Reviewed by Joel on . lighting question hi i posted about the 1000w lighting however i ended up getting sent a 250 watt sun system hps system. i also have 2 four foot plant and aquarium bulbs and housing along with another 2 24" bulbs of the same. if i combine all of these the hps and the 4 florous will that be enogh light to properly grow about 4-6 plants in a room about the size of a telephone booth and if so how should i position the lights? any help would greatly be apreciated Rating: 5