Do yourself a favor and don`t buy from igrowhydro.com.They have no customer service and are not willing to go the extra to help their customers.I bought a system(2 extra weeks wait) from them and I think my ballast has a problem and I wanted to do an even exchange.They are not interested in helping.They`ll just tell you to upgrade your system.Instead of saying sorry for the inconvience lets do what it takes to make you happy and be a repeat customer,nope they give you attitude when you call.They want to charge a 50% restocking fee for returns and you pay for return shipping.