User:KDS4444/T3 lamp

A T3 lamp is a form of lamp in which the basic form is a quartz tube with electrodes at either end and a filament connecting the electrodes. The T3 was developed in the 1950 in response to the inadequacies of the then-ubiquitous globe lamps which did not distribute heat evenly.

The end terminals of the T3 are either nickel pigtail wires covered with a nickel sleeve, or else a silver-plated nickel contact button inside a ceramic base. The bulb is filled with 600 mm of argon gas, and the tungsten filament supported by tantalum rings then undergoes a halogen cycle to produce light and heat.