Looks like your beans need light above him.You can see all leaf are turn sideways. Also I don't know how long lights are on, but you need at least 12 hours, since your system is in basement. My is in garage with transparent roof and I always experimenting so my plants don't have artificial light. I know that everything will grow better with extra light. I want to push my system to the limit in any direction ( professional deformation - I'm mechanic ).