... Base, High Applicability, Long lifespan, Rated power:23wEfficiency Light efficiency:70~80lm/WVoltage available: 12V/24VDC 120V/220V/277V ... Special advantages;1. Special mushroom contructions,Contrict light point, 360 angel light dispersion.2. Soft light , small volume can match simple and ... to metal halides,13 times more efficient than incandescent light bulbs, and up to twice as efficient as compact ...