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Lighting device and method of control based on chemistry composition of power source

  • US 8,120,268 B2
  • Filed: 07/23/2008
  • Issued: 02/21/2012
  • Est. Priority Date: 01/25/2008
  • Status: Active Grant
First Claim
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1. A lighting device comprising:

  • a light source;

    a power source for supplying power to the light source, wherein the power source has a chemistry composition and wherein the chemistry composition provides one of an alkaline electrochemical cell, a lithium electrochemical cell, and a nickel metal hydride cell;

    a chemistry detection device, wherein the chemistry detection device determines the chemistry composition of the power source as one of the alkaline electrochemical cell, the lithium electrochemical cell, and the nickel metal hydride cell; and

    control circuitry for controlling operation of the lighting device based upon the determined chemistry composition, wherein the control circuitry controls electrical power supplied to the light source to supply a first power when a first capacity chemistry composition is determined, and supplies a second power to the light source when a second capacity chemistry composition is determined.

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