seems like they want to remove the G4's from service. i do have an update on my G6 light they sold me at a discounted price. it is awesome the spread or coverage is much better. Mobius seems a little more difficult to operate than EcoSmart Live. I was able to copy my old program to Mobius. However, i cannot move my G4 to Mobius without a hardware update. If I change the intensity or spectrum i have to do it on each program. An inconvenience but not a deal breaker once i get the intensity back to where i want it, the lights just don't get messed with. Overall very happy with the new light.