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: Is it compatible to 220v or just for 110v? Also the lamp can convert to a clamp instead of stand?
Document: I don't expect the post to hold the weight of the lamp for very long. The arms are the only metal pieces on the unit. The one positive is that the amount and quality of light it gives off is really nice.The $18.00 lamp that this replaced was totally metal except for the clamp. Why do these companies make plastic clamps? This seems so silly since the clamps are the part that needs to be able to stand up to the weight of the lamp.
I was disappointed. This lamp doesn't fit tightly in the stand so it wobbles when I adjust it and it doesn't move into many angles.
I had this lamp for about 16 months and the transformer in the stem burned out. Made the lamp useless. Also, is really all plastic, so the $50 price for it is very excessive. While it worked, it was fine. I had none of the stability problems others had, and the light is good. Just wish they would put more quality into the transformer. I will not buy another one.
lighting is well spread also the flexibility work very good base could be heaver removing light is very easy would like to see this fixture in more colors
I'm as delighted as I was with the last one. The light is clean white light that is wonderful for computer work or a hobby table. I took the clamp from the second order and am using that with the first lamp.
Sorry to give this Ledu L283MB Computer task lamp one star, bit it does not fit securely into either the supplied base or the supplied desk clamp. It wobbles loosely in both. It is simply not useable. Returned to Amazon for refund.
For what this lamp costs, you'd expect a little metal, and that's what you get: very little. Except for the arm "ribs" it's all plastic. The clamp won't hold it steady in any way, the clamp itself will not firmly grip a desk, and to top it off, the design of the lamp is such that as you adjust the lamp, the too-tightly clamped cord gets its insulation shaved off.
This makes it harder, but not much, to position the lamp in exactly the position you want. Personally I just made a shim out of a piece of paper, seemed to do the trick at first but it has become a little loose from use. This makes me worry as it means the plastic is flexing and that could cause the desk clamp to break at some point.
This is a decent enough lamp, it looks great. I could not find anything better for fifty dollars. It should sell for less, pretty much all plastic. Table clamp works very well. It stays in position for me but I set it once and don't touch it. I don't think it is well enough built for frequent repositioning.
Immediately disappointed upon opening the package. This was purchased to replace an $18 lamp in which the table clamp had broke on it(the lamp is about a year old & still works great). The replacement clamp cost as much as a new lamp so we decided to try this $52.00 LEDU lamp. This was a mistake. All the joints, base, and the lamp itself are all plastic. The head for the light is very flimsy feeling.
Answer: yes