look HPS dose not have a better kelvin rating but like you said in you opinion it dose and what ever the rating is you are stuck with that do the math and look at other post 80,000 lumens is plenty to grow 15-20 plants of course using airoponics will produce bigger yields the above mentioned lumens is equil to 2 400 watt HPS lights which only has 90,000 initial lumens after about 100-500 hours of use keep in mind 12x60=720 the equivlent of one flowering cycle 60days at 12 hours each day brings the lumens down to 75,000-85,000 lumens for your precious HPS you are such a hatter and i sure am getting tired of doing your homework for you look i am a journeyman machine tool rebuilder and a journeyman electriction a profesional and i think we are on two diffrent levels you keep saying 18 lights because you saw a picture i posted for example purpose this unit can go as high as 1400 watts and only pull 12.1 amps with no ballast in series what i said was this light has the ability to grow 14 plants i never spoke of the bulb configureation just as an example let me say this and i hope this is the end of it for you i know it is for me so listen good
35 bulbs at 42 watts is 1470 watts well with in the operating range of this hood and that would creat 105,000 lumens and you say that is not enough to bloom 14 plants wow look 80,000 lumens is enough for 14 plants let alone 105,000 lumens of what ever kelvin rating you want. BOOOOOM i think i just sank your battle ship WELCOME TO THE THUNDERDOME BITCH.
Oyea LINUX rules.
