Patent ID: 7841735
Filing Date: 2010-11-30
Classification: F21L,F21V,F21Y,H02J

Abstract:
1. A battery operated portable fluorescent lamp, comprising: an elongated tubular housing having a handle grip at a first end and a substantially cylindrical lens proximate a second end, wherein said first end is adapted to couple to a battery pack and said lens is adapted to enclose a miniature fluorescent bulb; an electrical circuitry, enclosed within the handle grip and alternately operable from either a 120 VAC voltage source or a 12 VDC voltage source, the electrical circuitry including a converter circuit, a separate battery charging circuit, and a fluorescent lamp ballast circuit having an output coupled to the fluorescent bulb enclosed within the lens; and a battery pack, coupled to the first end of the tubular housing and operable to simultaneously receive charging current from an output of the charging circuit and to deliver DC supply voltage to the fluorescent lamp ballast circuit without the occurrence of a net discharge of the battery pack.