GE 3-Way Sunsmart In-Wall Digital Timer-15312 at The Home Depot
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Model # 15312

Internet # 202788253

3-Way Sunsmart In-Wall Digital Timer

GE 3-Way Sunsmart In-Wall Digital Timer

This item has been discontinued.
The Home Depot no longer carries this specific product.

$29.97 / each
Item cannot be shipped to the following state(s): AK,GU,HI,PR,VI


In Stock



Model # 15312

Internet # 202788253

Automate indoor or outdoor lights using easy-to-program custom settings for each day of the week with auto daylight adjustment. This seven-day programmable timer automatically provides sunset and sunrise times for easy programming. The lighted, easy-to-read digital display makes set-up a snap.

  • White or almond faceplates
  • 24-hour back up without battery
  • Random vacation setting for extra security
  • Easy to adjust for daylight savings
  • Manual override On/Off switch
  • Perfect for lights, fans and heaters
  • CFL ready
  • Note: Product may vary by store.

Info & Guides

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Amperage (amps)  20  Assembled Depth (in.)  1.625 in 
Assembled Height (in.)  4.125 in  Assembled Width (in.)  2.375 in 
Certifications and Listings  1-UL Listed  Color Family  White 
Color/Finish  White  Electrical Features  Programmable 
Electrical Product Type  Timer  Indoor/Outdoor  Indoor 
Manufacturer Warranty  1 Year Limited Warranty  Returnable  90-Day 
Style  Digital  Timer Type  In-Wall 
Voltage (volts)  120  Wall Plate Included  No 
Wattage (watts) 


Rated 3.7 out of 5 by 82 reviewers.
Rated 5 out of 5 by Great timer - Especially for outside lights - 1 year later still happy! I installed 2 of these about 1 year ago and I am still extremely satisfied. Spend the extra money and get this version since it does not require a battery and it is back-lit. The timer works exceptionally well and is very intelligent. The dusk to dawn feature is really cool. You program the zone in the US that you live in and it knows exactly when dusk and dawn is without needed a sensor. Because of this feature you don't even need to enter a program unless you want to. If you want to do traditional programming of on/off events you can do that too. I would highly recommend this GE SunSmart Digital Timer. March 24, 2014
Rated 4 out of 5 by Excellent features; a bit difficult to install. Overall a very good unit. At first I was a bit skeptical of a "smart" unit but after some thought, I realized with four of these units installed, having the unit adjust itself for the changes of sun up and sun down and daylight savings time it saves quite a bit of fussing over the course of the year. Performance is OK -- the timers lose a bit of time over the course of the year. The programming was not intuitive but the instructions, if followed carefully, will lead to successful programming. Installation was a bit tricky in a few places, as the unit is deep and takes up a lot of room in the electrical box. In one location it was very difficult to get the wires seated so that I could properly close up the 2-gang box with good alignment of the timer and the adjacent indoor light switch. February 18, 2014
Rated 4 out of 5 by Very Reliable but Loses Time I installed two of these over a year ago for my outdoor lights. I'm using LED bulbs with them and they work great. They have both been very reliable. I set he lights to come on at sunset and go off at midnight and this always happens, at least according to the clock on the switches. The only problem I've noticed is they both lose time. I've had to reset the time on them once and they both were roughly a half-hour off after about a year. Naturally, if you are more persnickety than I, you'll want to adjust them more often. December 18, 2013
Rated 5 out of 5 by Good product, read the instructions, not sure why people say it's hard to operate? I read the previous reviews and concluded this was a solid product once you had managed to set it. Apparently the operating instructions were not clear. I had no problems setting the timer on the unit. I agree without the instructions it might be hard, but us men something find it hard to accept we need to follow instructions. So it's simple read them and it's easy to operate. The unit is large and a tight fit in the switch box. March 4, 2014
Rated 4 out of 5 by Some issues Overall, a solid switch. It uses a relay (and makes a nice clicking sound) to turn on/off, so we've had no issues with mixing incandescent, CFL, and LED, all controlled by this switch. It has quite a high power capacity as well. It supports up to 7 different programs, for each program you can set the on/off times to be one of dawn, dusk, or a set time, and also set which days of the week. My main complaint with the functionality it is that the dawn/dusk time is not very adjustable. First, you can only set your location South/Central/North; if you live quite far north, it doesn't really track sunrise / sunset properly, it easily drifts +/- 30 minutes. The other problem is that you can set the on/off times only to dawn/dusk/set time, you can't do e.g. sunrise minus 30 minutes. As many others have written, the setup can be confusing. Once I understood it, it makes perfect sense: you need to first set the date / time / location, AND THEN you set the on/off program times. Needing the second step is somewhat obvious in retrospect, but for a while I thought it was broken. The two need to be done as separate steps (i.e. you need to press the setup button again after the first setup is complete); GE could have really made this a lot better if after doing the date / time / location setup, it continued immediately to the on/off program times. Epic fail on GE's part. It does support 3-way switches (and in fact I have mine working on a 4-way switch!!), but it does not work like a normal 3-way switch. A normal 3 way switch has 2 in and 1 out, and the switch just switches the out between the two in. This is TOTALLY different. Basically, you need to wire it to hot, neutral, and load, for a basic 2-way switch configuration. Then, for the 3-way switch, you need to connect it to a wire that either has voltage, or doesn't, based on the other switch. Once installed correctly it's been working great, but it took me easily 2 hours to figure it out. November 7, 2013
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