for sprouts best thign to do is put them under cfls for first couple weeks then introduce them to the hps begining from about 24 inches away till u get the confert level u want and the heat test with your hand
BkSkillz Reviewed by BkSkillz on . lighting problem ive heard from lots of people that u need your lights close to your plants to sop them stretching, but this worrys me cos my 600w hps gives off alot of heat and i dont want to burn my plants wen they sprout........how close should i have them im a little confused.............. Rating: 5