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: Anyone know how long the power cord is?  Limited outlets and a ban on extension cords. Thx.
Document: Very well built. The clamp has a super strong grip. The gooseneck is long and sturdy and it stays where you put it. The lamp is bright. It works on both power or usb. Nicely done. I'm ordering another!
This little light really surprised me. It is designed to be powered off electricity or a USB port and does it kick out the light. The clamp is sturdy and wonderfully tight. I use this as a reading lamp so it is clamped to my headboard and gets knocked about most nights, yet it has never fallen off. Simply, it's a great little light.
This lamp meets my needs for reading in bed. Note the light itself it maximum about three inches in diameter - hardly bigger than a silver $. Light when shining is  a very bright white. We needed a heavy clamp because of the bed frame style and this one is very heavy. It will only open about 2.5 inches. Forcing it to open farther will probably snap it. The style is contemporary. The neck seems sturdy and does allow for left-right movement.
The illumination is adequate for my needs, but the wire mesh cable that is supposed to both remain flexible and hold the lamp in position is shoddy. It is not strong enough to keep the lamp in an upright position; i find that the lamp is constantly flopping over. Very annoying.
The clamp is strong, the light is very bright. The neck of the lamp is easy to manipulate into position. Overall, I am very satisfied. The only down side was the packaging. The lamp came in a very small cardboard box with just a thin plastic bag protecting it. The first lamp came broken with the lamp covering completely smashed exposing the bulbs inside. Another lamp was sent and arrived quickly; however, it came in the same type of small box that was again somewhat squashed.
I do wonder, however, what I will do if and when the LED bulbs needs to be replaced.......
I am glad the second lamp survived the shipping trip.
Great
Answer: no