Anyone have any experience with commercial grade astronomical timers? I need to control 4 corners of an intersection within a subdivision and I'll be pulling power from lamp posts that are on these corners. The problem is that these lamp post circuits are currently on a photocell located at the meter/breaker panel, and I need it to be as maintenance free as possible. (ie, no replacing unreliable PC's or constantly adjusting timers). Looking at the Intermatic ET8015C or the Tork EWZ103. Any Experience with longevity and reliability would be appreciated.