All New and New open box items will be open and checked to make sure they are not damaged, if electrical we will test to make sure they are in working order when proper electrical supply source is available. There may be some items that are electrical and other products we cannot check if we do not have the proper source or if item must be installed into another product to make item work. All Sales are final please ask any questions before purchasing. (With the exception of DOA Items that we could not test.) As always we do strive to keep our customers happy!