Bests & Worsts Reviews from Amazon

I just opened it and was quite shocked at how small it really was. It measures out to 3.5" long / 2.5" wide / 1.5" thick. I bought it to charge my laptops on the road and they require at least 100 volts to charge. When I first tested it it read 106.2 volts with no load and I was a little worried it might drop even more under load. It does say + or - 10% of 110 volts.. Not to worry though under load this little inverter stepped up to the challenge and produced a solid 113.2 volts under load. These reading were done with my test box that does a solid consistent 12.1 volts up to 38 amps. I do have one other concern, and that it says 12volt 40 amps and don't think any power ports in cars and trucks are rated for over 30 amps. Time will tell if I end up blowing any fuses I will update my review after more use. I do customize my power ports on my vehicles to a 10 gauge wire designed to handle 30 amps with a 30 amp fuse. You would need an 8 gauge wire to run a solid 40 amps and I know of no manufactures that runs 8 gauge to their power ports. Maybe when I am bored I will run an amp draw under load to see what it does. I expect it spikes to 40 amps but runs much less. If not people would be complaining of it blowing their fuses. Looks like a great buy for the money.