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: Do these have a timer or is it just on and off?
Document: some did not work
When ordering, you should note the height, because these run true to the description, and if you want a larger pillar you should order accordingly. If you want flameless pillar candles, this is the way to go.
We were a little disappointed that the color changing didn't allow to keep it on one color but when its on the yellow/white light it looks great. Some of our guests thought they were real candles. Would of rated 5 f they were a little taller.
Very realistic whitish-yellow flicker. Plastic looks and feels almost like real candles. Takes a second look to be sure they are not real. Much more practical than wax and flames and likely will last much longer (although I wish they used cheaper replacement batteries - about $3 each!). Very fast shipment and delivery.Two (out of 8) votives were dead on arrival and could not be resuscitated with new batteries, seller quickly shipped replacement votives immediately.
Very nice! Exactly the size that I wanted, thanks!
Very good
VERY NICE LIGHTS. Has three levels and woorks great .The colors changes and looks beutiful when the room is dark. We used it for New Year party and the tables looked amazing.
These have a nice glow and placed around the house they look pretty and you don't need to turn on lights to see. These are only about twice as big as a votive candle, however. I thought they would be larger. Also, they are a hard plastic, not like real wax. But the color changing feature works well and is appealing. The set comes with eight. One of the set I received has a short, but that is just an oddity I am sure.
These candles are cute. It took some jiggering to get all the batteries going, but eventually they all lighted up. They do look plastic-y, but they are pretty and reliable. I like them, and are great for those who aren't fans of open flames for kid or cat reasons!
These candles add a nice ambiance to my deck. Living beachside there's always a breeze that blows real candles out, so these are the perfect solution to soft candlelight.
Answer: no