Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Since the other question was edited to show . I am curious how long the neck is on the lamp? Not including the light portion or the base. Just neck?
Document: I would still buy another if I wanted a light such as this.I just got this 30 min. ago and have been testing it since.The light levels are wonderful. I think the lamp is sturdy, both the gooseneck and the plastic. (but see above, the joint where the lamp joins the gooseneck may be delicate.) The illustration on the back of the box is useful.The USB/DC cord is about 3 feet 9 inches long for maximum placement flexibility.
I also use it if I am reading printed materials at the same time as using my laptop, just like a regular desk lamp.The lamp is surprisingly bright, due to the large number of LEDs concentrated in a small area. It also runs on AA batteries, but I have no idea how long it lasts on battery power instead of USB phantom power. The gooseneck is easily manipulated and the base is very lightweight, but the clamp is very strong.
I expected a cheap product that would make due for the time, but not last. While I have only had the product a short time now, it seems very durable. The flexible neck seems durable, and I do not think it will become loose anytime soon. The base (especially with batteries) is sufficient to use the lamp as a desk lamp. The clamp base adds additional mounting options. When the power cord is plugged in, it disengages the batteries, so you cannot recharge batteries in the product.
Heavier duty than I expected for the tiny price. The neck, especially. A bit large for book use, and 4 AAs seems excessive- butheck, it has a long burn between charges of the NiMHs. Clamp is adaquate. If you want industrial grade, spend some money and stop bitching about this. Look at the price.
I will say this, It just does what I expect it to do! I have no compaints as of yet! These type of inexpensive products seem to all do their job,they key is ;will it do it over a long period of time? That is the question; however ,I look at it this way, if it lasts me a year or two or maybe three? and it craps out, so I buy another one than who cares.
Purchased this light as an additional light in the living room where my son likes to do his homework or read. We have two upfacing torchiere floor lamps on each side of the room but doesn't provide the appropriate illumination for reading. Since I have a computer desk right behind the sofa, it was convenient to plug the lamp right into the USB.
I find that I have to bounce it off the wall to soften the light even on it's lowest setting or else the number of lumens will keep me up too late. The batteries have lasted very long as it seems miserly with energy usage. Very good lamp.
5.) The LED lamps should have a long life. It is replacing a Xenon lamp that had hard-to-find, heat generating, short lived, very bright bulbs.I feel that it is a very good lamp for the price. The primary disappointment is the total amount of light it generates. It has a 4 X 7 array of LED's. It can be switched so that one row of 4 illuminates, a 4 X 4 grid, or all 28 at once.
I looked in a few different stores, including Walmart, for a new reading lamp to replace my old hi-intensity lamp that seems to have died. I found almost nothing and wound up with a clamp-on work light in the tool department. It left a lot to be desired when it came to brightness. This one has three brightness levels and the dimmest one is all I need!
This lamp is exactly what I needed to light the keyboard. It's flexible neck and 3 different light levels make it very adaptable.
Answer: yes