There have been many awesome advances in lighting technology since VHO
was introduced. While T-5 has smaller tubes, they also have smaller wattages and many would argue that the lighting is better. VHO
in 4ft lengths are 110 watt and IMO
has better light output. Again, that poses a debate on any forum... This is JMO. I would do more research as to the spectrums and intensity before making a decision....
Also, you may want to look into the possibility of MH
lighting and just supplement with VHO
, T-5 or PC