Leviton Countdown Timer Switch for bathroom fan and household lights, 10-20-30-60 min, No Neutral Required, Single Pole, 15A, 1/2HP/9.8A Fan/Motor, DT160-1LW, White

Easy install. Great for a house full of kids who never turn off the bath fan, as it’s a push button to set it and forget it. Works well. Sounds like a strong make and break. I bought more than on for each bathroom, but found it great for the garage lights also. The switch has a bit of depth to it, so it works better in a multi-gang or deep box, otherwise things get a bit tight, but it’s also expected with switches like these. Will purchase again.

This countdown switch works exactly as expected and is super convenient for lights or bathroom fans. The timer buttons are easy to use, and I like that it shuts things off automatically so I don’t have to worry about leaving anything on. Installation was straightforward, and it looks clean on the wall once installed. Great little upgrade if you want a simple way to save energy and add some peace of mind.

This count down timer switch was easy to install and works perfectly. Our wiring has the neutral wire available at the switch box so that made the installation very easy. You will need wire nuts and a cover plate which are not included in the box but otherwise it’s a well designed switch with very clear instructions. Highly recommend.

Use this to control the exhaust fan in the master bathroom. The timer allows extended run time for the fan to dehumidify the bathroom after a shower without having to remember to go back and shut it off. Easy to install, just 3 wires like any light switch, tho this one doesn't require a neutral. Looks clean and unobtrusive with the wall plate. Allows multiple timer settings and functions as designed.

Works great as expected from Leviton. Only downside is that the fit/finish on the buttons is a bit low. Every time it is pressed, the pressed button will end up uneven, deeper on the left or on the right. Those with any level of OCD will end up spending inordinate amounts of time adjusting the buttons so they all sit even and pointed straight forward. I really wish Leviton had sprung for two springs on each button, to push both sides back out after being pressed! Other than that issue, this is a good unit, and fits well with other "decora" / "paddle" type switches in the 3-gang box. The white matches the basic whites from other manufactures (ours is sitting next to two Lutron switches), although other color options may not be so lucky. It turns our bathroom exhaust fan on, and stays on for however long the button you press is. I haven't timed it with a stopwatch, but the timing appears to be very accurate just from glancing at my clock when pressed and when it turns back off. Note that in addition to the four time intervals (10, 20, 30, and 60 minutes), a long-press of the 60-minutes button will keep the fan on indefinitely. As time elapses, the button corresponding to the "time left" lights up (ex, if you start at 60 minutes, then 30 minutes later the "30" button will light up and the "60" light will turn off, like you'd just then pressed the 30 minute button; 10 more minutes and the light moves to the 20-minute button, etc). When less than a minute is left on it, the "10 minute" button's light starts blinking. Also, if you press any button while the fan is on, the timer is reset. For instance, if you hit "30 minutes", wait 5 minutes, and hit "30 minutes" again, it will stay on for a total of 35 minutes (30 minutes since the last time the 30 button was pressed).

Easy to install. Easy to use. I like the large push buttons to set time. Fan no longer runs longer than needed anymore.

Easy installation. Works as advertised

I’ve installed three Leviton countdown timers — DT104-1LW, DT115-1LW, and DT160-LW — and all work flawlessly even though my gang boxes have no neutral wire. The DT104-1LW (30 min, 1 hr, 2 hr, 4 hr) runs my BFQ90 CFM exhaust fan, the DT115-1LW (2, 5, 10, 15 min) is perfect for bathroom fans, and the DT160-LW (5, 10, 20, 30 min) handles lights and small heaters. Easy to install, dependable, and they look great on the wall. Highly recommended for anyone upgrading from old mechanical timers!