100W stanley power inverter 12VDC to 110VAC. It performed wonderfully. The adjustable neck let it match into either of the cigarette lighter jacks. Power held accurate even while idling for a train slowly leaving the Container Port and for any traffic accident to clear on the way home. The unit was warm with the touch but absolutely not hot in the end of each and every commute, even after working consistently at its rated 100 % load.
