Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: I have Cn101A, 12VDC. Is the switch 110V ?? I wanted 12VDC.
Document: Instructions are clearly written by someone where English is a second or third language. I have no idea how to operate this.Will be returning.
I have it running some LED lights for my Chicken Coop. Simple to use and setup, never looked at the instructions.
it worked exactly as advertised and appears to be well made. I am very happy with the unit. I am curious though about the internal battery that is supposed to last for 3 years. can it be replaced?
Answer: no