Patent ID: 8033858

Claim:
A lamp holder, comprising: an insulating base, including a first penetrating hole and a second penetrating hole both formed on and penetrated through the insulating base; a contact plate, made of an electrically conductive material and having an end substantially in a curved shape; a first fixing element, made of an electrically conductive material and passed through the first penetrating hole, wherein another end of the contact plate is fixed to a position on a side of the insulating base having the first penetrating hole by an end of the first fixing element, and another end of the first fixing element is disposed outside another side of the insulating base; an anode wiring element, made of an electrically conductive material and fixed to the other side of the insulating base by the other end of the first fixing element, wherein the anode wiring element is provided for coupling an anode power cord; a contact socket, made of an electrically conductive material and including a first opening and a second opening formed at top and bottom sides of the contact socket respectively, a thread formed on an internal side of the contact socket and an extended portion extended radially and inwardly from an edge of the second opening; a second fixing element, made of an electrically conductive material and passed through the second penetrating hole, wherein an end of the second fixing element is provided for fixing the extended portion to a position of a side of the insulating base having the second penetrating hole, and another end of the second fixing element is disposed outside the other side of the insulating base; and a cathode wiring element, made of an electrically conductive material and fixed to the other side of the insulating base by the other end of the second fixing element, wherein the cathode wiring element is provided for coupling a cathode power cord.