Patent ID: 6169373
Filing Date: 2001-01-02
Classification: F21L,F21V,F21W,F21Y,H05B

Abstract:
A work light, comprising: a) a generally cylindrical, at least partly transparent housing; b) a first light source comprising an elongated, rodlike, fluorescent bulb disposed within the housing; c) a second light source comprising a low voltage, narrow beam bulb disposed within the housing at one end face thereof; d) means for connection of the first light source to an alternating current source at an electrical main; e) a hangar hook projecting externally from the housing; f) means for converting alternating current of a first frequency from the main into direct current; g) means for converting the direct current into alternating current of a second frequency substantially higher than the first frequency comprising an oscillator circuit that operates on a load resistor, the oscillator circuit being constructed in the form of a half bridge circuit that operates with two transistors, the oscillator circuit being a self-starting circuit which is started up by a break-over diode which is connected to a base of one of said two transistors and is fired by charging a capacitor with the direct current; and h) means for selectively operating the first light source and the second light source with the alternating current of a second frequency.