The portable lamp

Central-Station revenue that is, revenue from the consumption of electrical energy is the foundation upon which the tremendous electrical business of this country is built. Any device which increases this consumption is a boon to the whole industry, and even to the nation, provided that there is an accompanying economic advantage of appropriate magnitude. It would take a superhuman analyst to determine the exact increase to the safety, efficiency, comfort and happiness of a household contributed by a portable lamp. Fortunately, portable lamps in the home are still far below the saturation point from the basis of usefulness alone, so that searching anlysis is unnecessary. Even when this point shall be reached there will be justification for more “portables” solely on the basis of ornament.