My 2nd Medical Marijuana grow (flowering week 4.5)

This is another video of my medical marijuana collective garden grow. This room is powered by 3 1000W HPS with sunblazer hoods. 2 740 CFM fans keep the lights and the room cool. The room is covered on all sides with 1 inch insulating Styrofoam wall panels with reflective surface. All construction and electrical work was done by myself and the members of my co-operative grow. this room contains 17 plants with some of the following strains. true 1976 purple haze, pez, Grape Ape, Sweet Hawaiian, Pu