The Q557 is a 24 hour time switch thatcomes with a day omit OFF function. This omit feature on the Q557 allows you to keep your application on all day if selected rather than being restricted to normal times. There is also a manual override button for your convenience.
100 hour battery reserve
Day omit OFF operation (stays on for selected days)
24 hour cycle
4-pin base (Volt free -independent clock & switch supply)