Patent ID: 6445132
Filing Date: 2002-09-03
Classification: H05B

Abstract:
A multi-mode light emitting device, comprising:a light module comprising a light source, a first terminal, a second terminal, and a polarity responsive controller interposed between the light source and the first and second terminals; a DC power source having a positive terminal and a negative terminal; and a switch means selectively defining either interconnections between (a) the first and positive terminals and (b) the second and negative terminals, or interconnections between (a) the first and negative terminals and (b) the second and positive terminals; wherein the polarity responsive controller comprises: a steady state power supply circuit activated by the interconnections between (a) the first and positive terminals and (b) the second and negative terminals, and supplying, when activated, steady state power from the DC power source to the light source which then produces a steady state light; and an intermittent power supply circuit activated by the interconnections between (a) the first and negative terminals and (b) the second and positive terminals, and supplying, when activated, intermittent power from the DC power source to the light source which then produces a flashing light.