Thanks for your reply, I am aware of the difference between HO and VHO and was only using the 20 watt as a test to see if I had good connections before trying to install it. The ballast label says it will power not only 2 96 watt bulbs but: 2 F96T12HO, 2 F96T12ES, 2 F84T12HO, or 2 F72T12HO. If...