I needed a way to test electronic components that I planned to install in my car. I found some more complicated items require careful preparation and testing before installation. But since they run on 12 volts DC, it is necessary to have a power source. It's not always practical to install items in the car and can be risky if the electric layout isn't correct.This unit supplies reasonable power (a little less than six amps) and covers my needs well for a reasonable price.It is small and light. The power cord is long enough to put in on a work table with a little to spare. The items I have attached worked properly and showed the correct 13.8 volts of power (the usual rating of car output when running).I have run it for several one hour sessions without the unit, cords or socket getting hot. The items I powered with it ran as expected and did not get hot or show any performance problems.It's all good!