i bought a big ben system about a year ago. what it is is basically a box, with a series of contactors. what the big ben system will do is allow you to run 2 lights off of one ballast at a single time. this is a good way to operate 2 rooms at the same time on a 12/12 cycle. well i need to buy another one of these, and i cannot find the company that i purchased it from. If anyone knows of this product who sells it, or possibly where i can get something comperable.