Changing light for flowering

Mr.Moruzzi

New Member
Hello,
From what i read, to start the flowering stage, it should be good to change the light bulb.. now i have a "Philips Master Son-t PIA Greenpower 600W", and it says it can be used for vegetative and flowering.. having a spectrum of 2050k and 90000 lumen? For which stage should I use it?
 
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