Patent ID: 8823253

Claim:
A lamp comprising a first cathode, a second cathode, supports for said first and second cathodes, and at least one starting amalgam in a high temperature portion of said lamp, wherein said starting amalgam comprises a master alloy and mercury in an amount of 0.1 wt % to 10 wt % with respect to the starting amalgam total weight, wherein said master alloy comprises: one or more elements selected in a group A consisting of Ag, Cu, Au, Ni, Ti; and one or more elements selected in a group B consisting of Bi, Sn, Ga, Zn, wherein: A is at least 50 wt % of said master alloy; B is at least 15 wt % of said master alloy; and A+B is at least 95 wt % of said master alloy.