Yeah that buzzing sound is not good mine went out shortly after I heard that it's the capacitor inside to replace the capacitor you open it up and find the right capacitor value online. it's cheap and easy
So basically I have nine white widow crossed with big bud female seeds growing out one month in. My set up is as follows
4x4 tent
600 watt hps air cooled hood
6" centrifuge fan @ 445 cfm x 2
Oscillating fan
Fan speed controller x 2
12 plants from seed. (everyone is female)
3 gallon grow bags...