The Feit Electric BPMR16 GU10 930CA lighting component is a game-changer in terms of brightness and efficiency. Based on our own experience we have seen a significant reduction in energy costs while enjoying a much brighter and clearer light in our work areas. The GU10 base makes it easy to install in a variety of fixtures and the 930CA color temperature provides a warm, inviting atmosphere. The only con we can think of is maybe the initial cost for the LEDs, but the long-term savings more than make up for it..