This document discusses the advantages of LED light bulbs over incandescent and CFL bulbs, noting that LEDs use 90% of their energy to create light rather than heat, last up to 100,000 hours which could be 20 years, and do not contain mercury like CFLs do. It also mentions that widespread adoption of LEDs could stimulate the economy and create jobs through manufacturing, sales, and infrastructure conversion projects that are now using stimulus money.