So I just wanted to give you guys an update to this since i saw a bunch of replies from people both here and in the other thread that was wrong and maybe someone else has the same light and finds this info useful.
This guy knows what he is talking about and this worked very well for me. I have used both switches for veg ever since and am usually at 22" for seedlings and 18-19" at flowering. The pictures are of my critical kush 2 weeks after switching to 12/12Simple fix :
1. PUT BOTH SWITCHES TO ON .... LEAVE IT THAT WAY ALL THE WAY THRU.
2. 18" normal over canopy. 20" -24" over seedlings.
3. The stretch is from lack of light ... Hence both switches.
I have same rig ... I moved on to Quantums BUT I still have it cuz it grows fairly well for a blurple. I kept it cause I like the damn thing. Anyways running BLUE ONLY is hella weak .
Rig pulls actually around 278w not 600 - market hype.
Even though you may get better rigs later like I did ... This panel works pretty well for small grows.
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