The Leviton LTT60-1LT 10-20-30-60 Minute Countdown Timer Switch is ideal for indoor/outdoor lighting. The switch features four easy-to-use preset timed buttons and an off button. Select from 10, 20, 30 or 60 minutes before the wired light turns off. The LEDs alongside each button light up, going out as each passes, so you can tell how much time is left on the timer. A simple press and hold will override the timer function.