Long-lasting LED bulbs
We all depend on electric light: to live and work; for comfort and safety. That dependency accounts for as much as 20 percent of all electricity consumption.
Yet an enormous proportion of that consumption is wasteful.
Present-day lighting technologies are highly inefficient, with the exception of LED. Only five to seven percent of the energy used by a typical incandescent lamp, for example, actually produces light. Fluorescent bulbs are better, but still produce as much as four times more heat than light.