Comment on Xantrex Technologies 813-3000 XPower 3,000-Watt Inverter by Evelyn Nilsen "crafty cupboard". 20 of 23 people found the following review helpful: Xantrex Technologies XPower 3,000-Watt Inverter, July 8, 2007 By Evelyn Nilsen "crafty cupboard" (AR USA) -    This review…