1
Thien S Yang, Gin P So: Lightweight plug-in fluorescent lamp assembly. Jacobson and Johnson, October 12, 1993: US05253152 (80 worldwide citation)

A plug-in fluorescent lamp assembly including a lightweight (e.g. plastic) light box that is adapted to either rest upon the existing support grid of a conventional false ceiling in a flush mounted arrangement or be attached directly to the ceiling in a surface mounted arrangement. The lamp assembly ...


2
Gin P So: Combination ballast for driving a fluorescent lamp or tube and ballast protection circuit. Selwyn Yuen, Hawes & Fischer, February 7, 1995: US05387846 (13 worldwide citation)

A circuit is disclosed to implement an energy saving electronic ballast (1A) for driving a fluorescent lamp or tube (2). The circuit is characterized by a high power factor, low harmonic distortion and minimized radio frequency interference. The circuit includes a unique DC power supply (4) comprisi ...