The document discusses converting consumers from using incandescent light bulbs to more energy efficient CFL (compact fluorescent light) bulbs. It outlines the SPADE problem-solving approach: The situation presents new CFL bulbs that last longer and use less energy but cost more. The problem is how to get consumers to switch even if it means initially spending more. Alternatives discussed include selling the benefits of CFLs, lowering the price, or advertising. The decision was to sell the energy savings benefits of CFLs at a higher price targeting higher-income consumers. An evaluation after implementation showed adoption was slow so adjustments were made like giving away CFLs to lower-income consumers.