AmerTac 6009B 2.5" x 2.08" x 1.96" White Dimmer Socket Full range from dim to bright Compact size fits most light Fixtures Converts Lighting to night light Manual dimmer Incandescent bulbs only For Incadescent Bulbs, 150 Watts Max Compact size fits most light fixtures Screws in like a lightbulb Saves money and energy Full range control from dim to bright\