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The LightSmart™ App from UL is a free app designed to help consumers transition their home lighting to energy efficient technology. Available for iPhone, iPad and Android™ users, the app allows users to Save, Find, Shop and Learn. Save by comparing ongoing operating costs of various replacement bulbs. Find the right amount of light, or lumens, and the right color for your home. Shop for new light fixtures and get expert advice from ALA showrooms. Learn about the regulations affecting the phase-out and availability of traditional incandescent light bulbs.