Compact Fluorescent light bulbs, or CFLs, are an energy-efficient alternative to traditional incandescent and halogen lights. They use less energy than these kinds of lights, although they use more energy than comparable LED models. CFLs are ideal for use in offices, kitchens, hallways, and other areas that need a large area of light. Because they produce about 75% less heat than incandescent bulbs, they keep rooms they light cooler than traditional lights would.

Sylvania's model 20584 light bulb uses 40W of power, with a brightness of 3150LM lumens. It fits a 2G11 base, and produces a soft white light. With typical use, it lasts about 20000 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 046135205842.