Patent ID: 8284536

Claim:
A lighting device, comprising: a lighting component; at least one electronic circuit having an input configured to receive current and an output configured to drive the lighting component; and a surge protection device, the surge protection device included in a current path between a power supply and the input of the at least one electronic circuit, wherein the surge protection device comprises: a first line input; a second line input; a first line output; a second line output; a ground connection; a metal oxide varistor (MOV) stage comprising: a first fuse connected between the first line input and a first node, a first MOV connected between the first node and the ground connection, a second fuse connected between the second line input and a second node, a second MOV connected between the second node and the ground connection, and a third MOV connected between the first and second nodes; and a filter stage, comprising: a first inductor connected between the first node and the first line output, and a second inductor connected between the second node and the second line output; wherein the surge protection device is configured to respond to a transient condition by switching into a low impedance state while maintaining the at least one electronic circuit in a high impedance state during the transient to thereby protect the at least one electronic circuit.