Incandescent light bulbs were once considered industry standard - the kind that pops into mind when one pictures a "light bulb." They mostly see residential household use, though they often find their way into restaurants, hotels, and other sectors of hospitality where warm light is appropriate for relaxed, intimate settings. Because they use more energy than modern alternatives, incandescent bulbs generally are more expensive to run, and produce more heat in the areas they illuminate.

Satco's model S1383 light bulb uses 20W of power, with a brightness of lumens. It fits a BA15s base, and produces an adjustable specrum of warm white light to daylight. With typical use, it lasts about 300 hours on average before requiring a replacement. This product is sold in multiples of 10. It comes with a standard manufacturer's warranty, and its UPC is 045923013836.