A2: LED Lights

A New York Times article on the benefits of converting to light emitting diodes or LEDs, quotes Mike Bergren, Ann Arbor’s field-operations manager, who says the $515 cost of installing each light will be paid back in reduced maintenance and electrical costs in four years and four months. The article notes that “in Ann Arbor they have been programmed to perform various useful tricks – to become brighter when someone walks under a light or to flicker outside of a home to guide paramedics to an emergency. And because they do not emit ultraviolet light, they attract no bugs.” [Source]