by Paul Williams Greph Credit: U.S. Department of Energy The Energy Independence and Security Act of 2007 put many changes into motion for the lighting industry. The most significant change is a required 25 percent increase in the energy efficiency of light bulbs. Since manufacturers are currently unable to increase incandescent bulb efficiency by such a large percentage, the end result is essentially the phased elimination of this type of bulb. In January of 2012, the manufacture of 100-watt incandescent light bulbs that fail to meet the new efficiency standard wi...