Nikola Tesla's Electric Incandescent Lamp introduced a new approach to electric lighting by utilizing high-frequency, high-voltage alternating currents instead of conventional low-frequency power. Rather than relying on a traditional filament operating in a gas-filled bulb, Tesla designed a highly evacuated lamp containing isolated refractory conductors that become incandescent under the influence of extremely high-frequency electrical energy. This innovation demonstrated a more efficient and durable method of producing light while advancing the understanding of high-frequency electrical systems.

The lamp consists of a sealed glass bulb containing two isolated carbon or refractory conductors mounted inside an ultra-high vacuum. These conductors are connected either directly or inductively to a high-frequency power source. Because the vacuum is maintained beyond the non-striking point, there is no visible electrical arc between the conductors. Instead, they are heated directly by the electrical field until they emit bright incandescent light, resulting in stable illumination with minimal electrode degradation.

The CAD model illustrates the complete lamp assembly, including the glass envelope, insulated electrical feedthroughs, refractory conductors, ceramic insulation, and vacuum-sealed construction. It also highlights Tesla's alternative inductively coupled design, where energy is transferred through integrated capacitor structures instead of direct electrical connections. This arrangement reduces electrical losses while demonstrating one of Tesla's earliest practical applications of high-frequency power transfer.