What is halogen and how is it different than incandescent?

A Guide To A Commonly Asked Question - LED Bulbs Vs Halogen Lamps - Wh - 12VMonster Lighting

Watts The Deal? Demystifying LEDs, CFLs, Halogens And More : NPR

lightbulbs Bulb, Incandescent light bulbs, Light bulb

Comprehensive Guide on 12 Types of Light Bulbs: Mastering Light

What Is The Difference Between Halogen And LED Light Bulbs - LED & Lighting Info

Incandescent and Halogen Lamps

Halogen Vs LED lights - Which is Better? - ElectronicsHub

The light bulb transition: when standards and subsidies promote sub-optimal technologies - Energy Post

If a 60-watt halogen bulb burns both hotter and brighter than a regular 60-watt incandescent bulb, how is the law of conservation of energy respected? - Quora