Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: wires
Document: Actually, even if you are just replacing one switch, you are going to need a1-Gang Decora/GFCI Device Wallplate, since the timer does NOT come with a wallplate. And while this timer did fit in my electrical box (with lots of stuffing of wires), it is on the large side, so it is possible that this simply will not fit in your existing box.
we have a couple of them in our house! I love them.....the house is always lit up....even if we are not there!
Works like it is advertised.I'm not sure how the unit measures when sun up and sun down is measured but it works.
Works great and is just what we wanted for our son's home. Security aid that can be programmed for any number of occasions.
When the plate is closed, pressing on it pushes the peg into the button that overrides the programming making it easy to turn the light on/off pretty much normally (as if there wasn't a timer wired in).On the other models we tried, you would have to open the plate and fumble around (in the dark presumably) to find the right button to override the program. This device is dramatically more sensible. Highly recommend!
When I purchased this product, I read all of the reviews and thought how hard can it be to program a wall switch timer. Unfortunately, the one & two star reviews are being generous. I am an aerospace engineer by training for the last 35 years and I have REPEATEDLY tried to program this thing to come on automatically at least one time. I have determined that the software is defective, since other people can program this switch and get it to work.
We were using individual photo sensors on our outside lights. Unfortunately, that meant they all turned on at different times. The added length of the inline photo sensors also positioned the light bulbs in a position where they did not look good in the fixtures.If you take your time and read the instructions, programming this is not hard.I spent extra to get the GE product as I expect it to have the quality to last a long time.
We have three of these timers installed on our property, having ordered the most recent 2 after trying out another timer when we couldn't find this one locally. We returned the other after a fussy attempt at installation. Thankfully, we found this on amazon and promptly ordered 2 more units.What I love about this timer over the ones we found locally is the design (much more attractive) and most of all, the ability to override the timing mechanism with a simple press of the switch plate.
Very large. It is a tight fit in any electrical box. Seems to work so far. It takes a while to charge the battery backup. So if you install & program it, and then immediately turn off the power to adjust in the box, you will lose your programming. Do not program until it has been charging for about an hour. Programming logic is a little strange.
UPDATE: Two of these have failed within 3 months of installation. They eventually just fry, the screen goes blank, and they stop working. Both did the exact same thing. Exchanged at the store.Got it installed and working - finally. Be sure to read every word of the instruction manual and follow each step exactly. I bought a replacement and almost installed it before figuring out why the programming wasn't holding.
Answer: yes