Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: How many hours does the light last?
Document: many people will complain that there name brand one is so much better. This light aint bad at all, brighter than what I had before and the price was very nice. Go ahead and pay the name brand price for the same anount of light!
For it's price, this light is fantastic. The zoom feature is great and easy to use. Build quality is good, especially for it's price. The unit is very compact, comfortable to wear and the brightness is unbelievable. I've received many compliments on it, and am picking up a few for stocking stuffers this year. I would recommend this light to anybody. I'm glad I took a chance on it.
I ordered this because I was really hoping that I could get a really good light for less than $20 or $30. I almost ordered a $20 pelican but took a chance on this one because of so many good reviews.I am very impressed. I just got it tonight, so no idea on the durability, but it seems relatively well made.Brightness is incredible.
I am an avid flashlight buyer/user. I have many flashlights that are good brand. cree is one of the brands I usually see high quality from. The item I received is not the item I ordered. It is the wrong brand and the brightness is incorrect. The light I received is some off brand, it is not cree. The lumens are 160. Not 300! I wish to receive the correct item.
Excellent light. Very bright. Construction was good and should last. I really liked the ability to focus the beam on objects.
Bought two, we keep them near our beds and work great in outages. Batteries last a long time but the light will grow dimmer as you use it more often. Adjustable focus is great too.
When I received this light I noticed the item had Osram LED printed on the straps. The box picture looks the same as the item, but the labeling is different. Somewhere a separate sticker label was applied that says &#34;Cree 5w 300 L ... oomable Headlamp&#34; printed on it. The box has 160 lm printed on it with a burn life of 75 hours.
The construction is much better than I thought it would be. So is the light. It is BRIGHT! The last $12 head lamp I bought fell apart in less than 6 weeks. This one is far superior and very, very comfortable to wear. I use it for working on the car or on nights out on the lease.
This head lamp works great. It has a good bright light and compared to the other head lamps I have used it has a wide light that makes working in the dark easy and it has the best focus of any head lamp I have used and I've been using 12 different lamps in the last year.
I bought this light for a ridiculous low price, to replace my old head light, i don't know about lumen s, just learning about it, but i can tell yuh these facts about this light,it is effin brightit is cheaply madeit cost like next to nothingit uses tipple A`s batteriesand i like ito and i hope it last ah while
Answer: yes