### Question
How is the term tungsten-halogen lamp defined?


### Answer
The term **tungsten-halogen lamp** is defined in *42 U.S.C. § 6291* as the following:

> a gas-filled tungsten filament incandescent lamp containing a certain proportion of halogens in an inert gas

#### Citation:
  - *42 U.S.C. § 6291*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A-Energy Conservation Program for Consumer Products Other Than Automobiles**

