LUMii Heavy Duty 24 hour timer
Designed to take high loads: it has no problem dealing with the inductive loads produced by a 600w ballast or up to 6x 200w CFLs!
It has 96 switching operations within a 24 hour period (every 15 minutes).
Robust 'inline' case design with socket and timer dust covers.
Saves you money: no separate contactor needs to be purchased.