According to the fueleconomy.gov website, gasoline vehicles round trip efficiency is only 12 to 30%.
https://www.fueleconomy.gov/feg/atv.shtml
Electronics & Stuff, a lot about LEDs
According to the fueleconomy.gov website, gasoline vehicles round trip efficiency is only 12 to 30%.
https://www.fueleconomy.gov/feg/atv.shtml