I have asked the same questions as you and received much help!
can say you've come to the right place anyway
here there are people who will help you, it may take time but do not worry where it takes a little while
it's like buying a car! you can not just take the first best.
first you asking the friends and then you read about it and eventually try one on and then buy it ..
if it is good and everything feels right.
same thing about the lamp!!!
take your time, read and ask people who grow with the lamp right now and look at their harvest how it works for real.
I will help you as much as possible and no questions are bad questions!
But for people to give you an honest answer as there are several things you should think about!
make a list of what you want out of the lamp and what your budget is and so on.
do not forget that the light is only a tool ! it's just one of the tools and some people might do really well with a lamp and then when you buy it you may do less good results.
as I said, the light is just one of many things that you should consider.
if I may say

tell us a bit more about yourself and your experiences and explain a bit how you are as a person, etc., then you should ensure that when people get a more personal view of you so it will be easier for them to help you too.
you give and you take
it will reply that i said

give it time!!
once again!
give it time
do not make the same mistake as me and nag around!
but invite yourself and so will things back to you
Excuse my bad English but also hope you understand
but some things you should consider is the spectrum and the angle of the lens
that's what I was taught and then some more
best regards
E