 You can download Chapter 1 for free by going to drkenner.com. And you can buy the book at Amazon.com. At the C. Crane Company, we've got a new demand date to get every home in America to replace at least one incandescent bulb with a new energy-efficient, money-saving LED light bulb. A demand date is what we call it when you demand something from us that can make your life better, and it becomes our mandate.