MUSKEGON, Mich.--(BUSINESS WIRE)--EarthTronics, dedicated to developing innovative energy efficient lighting products that provide a positive economic and environmental impact for its customers, announced today that is has appointed Birgit Collins as Regional Sales Manager. Prior to joining EarthTronics, Collins was the Midwest Regional Sales Manager for Havells USA, a division of Havells Sylvania, where she was responsible for commercial/industrial lamp, ballast, and luminaire sales in the Mid