I do. However, I've got the Reeflux in there right now, one of the Helios died (they were at the end of their life anyway) and Eric was in the process of moving and needed bulbs, so went with the Reeflux. I need to switch over to the E-ballasts for energy savings and see what each of them look like. I've got one of the RL running on the CV E-ballast right now and it is visually whiter than the HQI. HQI runs them at 520 watts or so. Sanjay has no data posted on the IceCap ballast w/RL 10k, but the CV is 419. Life span should be better on either eballast as well.
CAReefer