History of Halogen Lamps - Who Invented Halogen Light Bulb?

How do energy saving light bulbs work?

Halogen, Light Bulb Types

Who Invented the Light Bulb? A History Lesson

Tungsten Halogen Light Bulbs - History, Working, Construction And Applications - Electrical Engineering

Halogen lamp, Definition & Facts

Halogen lamp Facts for Kids

Electric light - Wikipedia

High Tech, Historical Revival Lighting

The invention of the light bulbs and their evolution - Neoenergia

ZEISS Microscopy Online Campus

What is halogen and how is it different than incandescent?