also wipe the bulb down the bulb .....as the oils in your hands can make the bulb die faster......
If your gonna use more than 400w your gonna probably want a cool tube as your reflector or a nice inline fan..... i bought one off flea bay like a 6 inch and expect to get the speed controller......then you you can practically touch the tube as there is no bleaching like leds.....the closer the buds to light expect fat nugs.......
lights arent everything as i get better with growing im starting to realize its all about the roots health and size but that's another topic....
If your gonna use more than 400w your gonna probably want a cool tube as your reflector or a nice inline fan..... i bought one off flea bay like a 6 inch and expect to get the speed controller......then you you can practically touch the tube as there is no bleaching like leds.....the closer the buds to light expect fat nugs.......
lights arent everything as i get better with growing im starting to realize its all about the roots health and size but that's another topic....