I purchased this for my work truck. A co-worker also has one on his. They work great. So far we have had no problems with them. I ran 25 feet of two gauge wiring from battery to inverter. I ran about 5 feet of two gauge for ground. Our truck's are diesels and have two batteries. My co-worker left his on the other night and it ran the batteries dead. The load adjust function seams to work, but not real good when set to the least sensitive setting.