and your expertise on the subject comes from where? research or just what you have heard on these boards from other members? before accusing a published book of being wrong maybe you should get your facts 100% straight and have some research to back up your acusationsya i just read tht over..some good info exsept on CFLs..its all wrong..says keep em 12in away and tht 65-125 watts were most effiecent..both statements are wrong..wntes them within 6in or closer and 12-42watters are most effient lumens/watt..other than tht alotta in dept info on the life cycle and different parts of the plant. thanks man gave me something to read today at work