sf1000d

Hello, I'm having some problems with my autoflower 6 weeks old (maybe not as I'm too newbie to judge) I think since I saw the first signs of flowering was 2 weeks ago growth slowed down "in my opinion" as white hair not developing fast as I imagined. Also, can you identify any light stress...

I'm doing my first grow. here is my 2-week-old auto flower plant starting to have edges curling up a bit? or am I too cautious because it's my first plant? I just moved the light down closer to the plant almost to 18inches as described in the sf1000d(not dimmable always on 100%) LED product for...