Buying a light bulb today involves choosing between three different product options incl...

Buying a light bulb today involves choosing between three different product options including incandescent, compact fluorescent (CFL), and light-emitting diode (LED), as illustrated in Fig. P7.3D. Using a 100-W incandescent bulb and its lighting level in lumens as the baseline, compare the three types of bulbs on the basis of life span, lighting level, product cost, and environmental impact related to manufacturing and disposal. For an operational period of 20,000 hours, compare the costs for electricity and bulbs. Present your findings in an executive summary including a prediction about the type of bulb that will be used most in 2020.