Invention Grant
US08946991B2 Apparatus, method, and system for event and backup lighting 有权
事件和备用照明的装置,方法和系统

Apparatus, method, and system for event and backup lighting
Abstract:
An apparatus, system, and method for solid state lighting is envisioned which, according to aspects of the invention, provides primary event and/or utility lighting during normal power conditions, and which, during periods of interrupted power, provides uninterrupted event lighting for a desired duration, provides a gradual transition from event lighting levels to utility lighting levels, and provides a gradual transition from utility lighting levels to emergency lighting levels.
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