HID SMART Controllers 

HID SMART allows you to double your HID lighting using your existing electrical set up without adding additional ballasts! No electrician needed, and no electrical upgrades necessary. Fast, easy plug and play setup. 

What it boils down to is this... you can connect 2 HID grow lights to EACH of your ballasts, then separately run each light for a 12-hour cycle. If you've got two growing areas this is your tool.

Driven by the onboard micro-controller each light is controlled individually in a cascading fashion. At the end of each light cycle, lights are cascaded "OFF" in one room, while simultaneously cascading lights "ON" in another. No two gardens are ever ON at the same time.

What does this mean to you?

Save the expense of added ballasts
Save electrical costs for ballast power-ups
Save the cost of electrician bills for additional outlet installations
Extend ballast life by eliminating on / off cycles

FREEDOM TECHNOLOGY circuitry gives you the ultimate protection from voltage spikes or power surges. HID SMART provides a streamlined power center, producing less heat and reducing risk of fire. White power coated finish resists moisture and chips. Unit is wall mountable. UL rated for commercial usage.

Specifications:

HID SMART 6 - Run up to 12 lights on 6 ballasts - 12 HVO rated to 2000W
HID SMART 10 - Run up to 20 lights on 10 ballasts - 20 HVO rated to 2000W
HID SMART 20 - Run up to 40 lights on 20 ballasts - 40 HVO rated to 2000W

Engineered and manufactured in the USA! Two year factory warranty.

More info from the Manufacturer (PDF format - Lots of detail.)