Techbee 1 s to 999 h Interval, Short/Long On-Off Repeat Cycle Timer Plug Outlet with Countdown and Light Sensor, Waterproof for Outdoor,15A 1HP

Customizable Continuous Intervals: the on and the off repetitive intervals can be as short as 1s, and as long as 999 hours (about 41.5days), more flexible for your different needs. Please note: this timer doesn’t allow programming based on actual time
3 Cycle Modes: the on and off interval cycle can be set to run infinitely(24/7), or to run only during the day or only at night for different purposes
4 ON/OFF Modes: always ON/OFF mode allows you to manually override the timer, allows quick set to on from dawn to dusk, or on from dusk to dawn