Lamp device and a method for operating a lamp device

  • US 9,288,879 B2
  • Filed: 03/27/2013
  • Issued: 03/15/2016
  • Est. Priority Date: 04/03/2012
  • Status: Active Grant
First Claim
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1. A lamp device comprising:

  • a lighting module including a first and a second terminal;

    a first and a second pair of connection pins for connecting the lamp device to a lighting fixture, wherein a first connection pin of the second pair is connected to the second terminal;

    a switch operable to connect a first pin of the first pair to the first terminal when closed; and

    circuitry arranged to close the switch in response to a voltage difference between the pins of the first pair exceeding a first threshold voltage and a voltage difference between the pins of the second pair exceeding a second threshold voltage.

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