When I built my Tegu cage I wired it so the lights were controlled by a timer wired into an electrical box, like a plug in. After lots of time trying to get good information I went with an Intermatic EJ351. It would work right for a couple days and then the times got off. After a little more research I was advised to try an Intermatic SS7C. The EJ351 would not work with the flourscent lighting in the tank.
The SS7C was easy to install and program. I'll let you know how it works out.
Mike B

