GENESIS LED MASS NOTIFICATION DEVICES have high-performance LEDs that require fewer power supplies, backup power, and batteries. The strobes also use high-efficiency optics combined with patented electronics to deliver a highly controlled and efficiently focused light distribution pattern in exchange for lower current requirements. Other features include field-selectable switches (25V and 70V) and selectable wattage taps in a low-profile design that's easy to install. Ceiling mount. White with amber lens. UL listed.