Cigarette Lighter Amp Draw. If your car is designed with 12V output and 15amp fuser then the max output of your cars cigarette lighter socket is 1215180W. Anything more than that you risk draining your battery really quickly as well as possible heat meltdown of.
You will be better off to run a dedicated fused wire from the battery. - Connect to the 12v auxillary bus bar IF draw is under 10 amps OR the 12v power outlet. With a 2 ohm coil you can get 50 watts at 5 amps10 volts.
The electrical formula is PEI where Pwattage Evoltage 12V and Iamperage.
Just check the fusebreaker that it is on for the value on your plane. The cig lighter has a 20 Amp fuse on it. Wagan EL9903 - 5 amp AC to DC Power Adapter 5A Power Converter Converts 110V AC to 12V DC Car Cigarette Ligher Socket UL listed Black 45 out of 5 stars 3091 16 offers from 1334. 4Once finished using the inverter turn off your electrical appliance and the inverterThe indicator lights should be off.