What is halogen and how is it different than incandescent?
Halogen Lamp
Halogen lamp - Wikipedia
Halogen lamp - Wikipedia
LED vs Halogen Lighting - Which one is the Best Choice?
Halogen Studio Lamp Spot Light Bulb T26 Gy9.5 650w Halogen Quartz Bulb Lamp For Digital Photography 3200k Video Lamp - Professional Lighting - AliExpress
Quartz Halogen 12v 50w Microscope Light Bulb
How does a halogen light bulb work? | HowStuffWorks