Originally posted by 2manytoyz:
[b]I have the ever popular Vector 400 Watt model. Works very well.

Keep in mind you can't get 400 Watts from the cigarette lighter outlet.

Power = Current x Voltage (P=IxE), or I=P/E
Current = 400/12 = 33.3 Amps.

What is your outlet rated at? Unless you're connecting it directly to the battery, you won't be able to use the full capacity of a 400 Watt inverter either. But... you'll have enough capacity to run a laptop or similar.



Here's an actual waveform from my inverter:



The modified sinewave runs most electronics just fine. True sinewave inverters cost a lot more, and work better with inductive loads (transformers, motors, microwaves, etc.).