A safe replacement for the kerosene lamp.

Nice try, but there is no way this will replace full-scale electrification. Of course because there is a logarithmic utility of electric power per capita (as with just about everything else), nice that someone captures say, 20% of value of electrification for 5% of the price, by providing 0.01% of energy that would be normally used in 'electric' society. But it only goes that far.