Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Does the power pack have to be mounted on a wall or post?  Is it OK to set it on our stone patio?
Document: I have them wired in parallel back to the Power Pack. It is on the verge of impossible to make enough space behind the single set of output screws on this unit. I did say verge of....I did it, but this product could be made better for minimal extra marginal cost.
The older 250-watt power pack on my low-voltage outdoor lighting installation finally gave up the ghost. It used a mechanical timer that eventually went the way of all things mechanical. Opted for the Moonrays 95433 for its increased capacity margin, because of its non-reliance on mechanicals, and because of the high user ratings in Amazon comments. The Moonrays weighs twice what the old one did (A good thing! ), was amazingly easy to install and set up, and operates flawlessly.
I need a higher watt power pack and decided, after hearing many negative things about Malibu, to go with this one. It was easy to install and is working great.
Installation and set up could not have been easier. Working great so far, hope it lasts. The built in photocell is far superior to the old style ones that have to be mounted separately.
This is a heavy duty, well built low voltage landscape power supply. I love the photo cell & the ability to set the number of hours on after sunset or sunrise to sunset. Well worth the price. This is a very heavy unit, make sure to mount it securely. HIGHLY RECOMMENDED!
I purchased this unit for approximately $95.00 in January of 2013. The unit was installed in mid August and is set for the auto photocell function. It works great and it is very easy to operate. This unit is now on sale for about $65.00 making it an even better buy. I ordered another one to power other areas of my property.
I bought our first Moonray about a year ago and am slowly replacing the old power packs that we have, the Malibu ones with the dials that have to be set by hand. The Moonrays are light sensitive and go on and off automatically which is very handy. You can program the number of hours you want your lights to stay on. I've replaced three of my four transformers so far and will get another Moonray when the old and final Malibu stops working.
Easy installation. Runs all the lighting already installed. This is a replacement for a transformer that only lived a couple of years. Hoping this one lasts longer, but OK for the first two months.
Broke after a single use and hand to return would not buy again. It would make a loud humming noise and output no power.
Was very surprised to see the size of this unit. The one I replaced was half the size with the same watt output. So far it has worked very good. Hope it lasts as long as the last one which I probably had for 15 years. Other was a different brand. I'll post a review later if I'm not satisfied.
Answer: no