Good in photochromism, concentrate light beam, convenient use, 2,000-hours average life-time. Features: 1) Good in photochromism, concentrate light beam, convenient ... use, 2,000-hours average life-time. 2) Applications: illumination for house, shopwindow, display ... 220 1000 E39/E40 R180 315 Reflector Lamps for Outdoor Use(RF-H)