Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: How is this "craft" light different from the XtraFlex2 "book" light? They seem to have same dimensions, 20 lumens, 4.8 oz
Document: I have used any number of different book lights and this is easily the best of the lot. Well built, easy to use, regular batteries, two light settings and reasonably priced. What more could you want.
Very pleased with the Mighty Bright XtraFlex2 light. Lights up Kindle screen and book pages very well. Flexible stem is great and functional.The only negative is that the base (where batteries are stored) is a little cumbersome at times. Would have been nice if the design would have incorporated differnt batteries so the base could be smaller.
The Mighty Bright is far and away the best reading light I have ever owned. All of the other ones I have tried have failed me in one way or another. Some weren't bright enough, some had an awful battery life, most never seem to position the way I want, and others just didn't clip to the book securely. This light is the best I've found at all four! *  The selectable dual-LED light is fantastic.
The XtraFlex2 LED book light is light years (no pun intended) better than the old itty-bitty-type lights that used incandescent bulbs.The XtraFlex2 gets great battery life, unlike the the itty-bittys, which I found went through batteries like crazy. Of course, the LED "bulbs" don't burn out like the itty-bitty blubs (and the XtraFlex2 doesn't heat up from its bulbs, either).
Time being what it is during the day pretty much precludes the luxury of pleasure reading, so...this pastime is relegated to the evening hours, usually in bed. My wife does the same, but 5 minutes into her book, yawns and says,"I'm just too tired to read". The main overhead lights go out and I'm stuck with using a reading light. I've gone through a number of these over the years and have found the Mighty Bright XtraFlex2 to be the best I've ever owned.
The Mighty Bright XtraFlex2 Light by Mighty Bright has been my favorite book light over the years. I must have run through 5 in the last 10 years or so. I have never had a problem with the neck breaking or providing less than excellent light in any direction I want. I travel with it everywhere. I am a night bedtime reader and use it so I don't disturb my husbands sleep. Only draw back is changing batteries every 2 weeks or so.
I bought one from Amazon and am very happy with it. It's light and bright - just what I want. The only issue is the position of the switch. When I put the light in a backpack, it is easy for something to make contact with its switch to turn it on and drain the battery. I have to coil the neck the other way so that the switch is facing inside to be protected. I have another book light from a different make and it does not have this problem.
After reading many reviews for many different book lights, I decided on the Mighty Bright. It has turned out to be a fantastic decision. This little clip-on gives off the perfect amount of light for my Kindle. I just clip it to the top, and I can read in bed without disturbing my husband! It's also handy for low light conditions. I like to keep my living room moderately light in the evenings, and while it's sufficient enough to read in, the Mighty Bright makes it MUCH easier!
I did not use this personally as I bought it as a gift. The recipient had been through 3 or 4 other book lites, though, and told me later how much they love this one in comparison, and they ended up buying another one for someone else to give as a gift themself, so I would say highly recommend.
The XtraFlex2 I had to re-attach every few pages or so. I had to attach it either to the right or the left of the book, depending if I'm over the half of the book or not, and almost every page I find my self constantly trying to find the most ideal position for best lighting. This problem is solved with the headlamp. You can just skip pages without anything attach to the book! Another point for the headlamp is that the batteries last much longer.
Answer: yes