Apparatus, installations and devices for lighting; electric lamps; lamps; safety lamps; lamps for indicator lights; incandescent lamps; fluorescent lamps; halogen lamps; tubular electric lamps; dichroic lamps; electric light bulbs; light bulbs; luminous tubes for lighting; electric discharge tubes for lighting; fluorescent tubes for lighting; bracket lights; self-contained lighting units, including emergency lighting; modular emergency lighting units; blocks and plates for security lighting w...

apparatus for testing and indicating voltage of electrical circuits and/or storage batteries