A:AnswerHello, this TV is manufactured for use in the USA and does require 120Vac for optimal operation, however, the TV can withstand up to 240Vac with an adapter if needed. ^CP
A:AnswerThis is not a specification we have available to provide. LG is a member of the UHD Alliance Certification which has requirements for 4K TV's that we must meet or exceed. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport or you can give us a call at 800-243-0000. ^CP