[Izzy Dunne]

Three 100 watt bulbs burning for two hours should cause a 4.5 kilowatt drain on the batteries???

They're only 100-watts if you put 120 Volts across them, - try 1000 volts - they'll burn reeeeeeeallll bright (for a little while).

[Old Professer]

They're only 100-watts if you put 120 Volts across them, - try 1000 volts - they'll burn reeeeeeeallll bright (for a little while).

It's still 100 watts, the amperage is diminished by the voltage (pressure); 100/120=.8333; 100/1000=.1