Blackdragon, I believe if I were doing one in that small a light I’d go with an LED4Power LD4A set at 9A, it can be adjusted for power level in the configuration menu down from the 9A, the other option would be to use a 12A driver and you can set it as low as 8A I think. 12A would probably be too much in the small tube light. So yeah, I’d go with the 9 and maybe play with it at 9 but set it at 7 or so normally.