ok I think you are misunderstanding me. . If I get by with4 sf 1000 with no problems you are good with the SE1000.
How long do I veg a plant before flowering is anywhere from 4 to 8 weeks . Depends on how big I want her to be. (photoperiods)
You can buy a Citation Jet but can you fly it?
ok yields ughhh, If you buy a powerful light it does not mean you will double your yield. That comes with experience . Just my opinion. There are different lights used on here and I have to say I can't tell if someone is using this light or some other light.
My honest answer to you is , You buy what ever makes you happy so in turn you will be a happy grower.