This digital timer featuring best longevity and accuracy is perfect for the Super Feeder. Ratings:  120-125V-60Hz, output Max 15A  1875W  This type of timer is rare with a Minimum switching time of 1 second. It can be programmed in your hands for up to 8 "on-off" settings per day, any particular days or all days of the week. It has a self-recharging battery back-up system to protect programming and maintain exact time during power failures or removed from a power outlet for months. It has a manual override button to trigger your Super Feeder for additional portions or to turn on whatever else you want to power. When used with a Super Feeder, this timer can also be programmed to override the Super Feeder's own internal feed timer by using the "seconds" feature to select different portion sizes at different times of day by increasing or decreasing the feed time from the external digital timer. To use this feature, the feeder's own internal feed timing controller has to be set to a longer feed time than the longest "external" digital timer's programmed feed time in seconds, thereby overriding the feeder's controller. You could have one meal in the morning at 30 seconds duration, one at Noon for 15 seconds, another one at 6 PM for 40 seconds, etc... The simplest way is of course to use the feeder's own feed time controller for main daily portions. When the timer is plugged into a live power outlet, a green light is on. When it turns on, a red light also comes on for the duration of the "on" time.  IF YOU WOULD LIKE MORE DAILY CYCLES USING A DIGITAL TIMER, CONSIDER THE ACDT-19, but, it will not have "seconds" programming available, only minutes and hours, which is not important anyway if doing same portions all the time.

Video and textual information for programming/operation:  http://super-feed.com/ACDT-20-Super-Feeder-Digital-Timer.htm