life
Defined in 1 place of the United States Code.
The terms “life” and “lifetime” mean length of operating time of a statistically large group of lamps between first use and failure of 50 percent of the group in accordance with test procedures described in the IES Lighting Handbook-Reference Volume.
Source
- 1994–present42 U.S.C. § 6291The Public Health and Welfare · Definitions · for purposes of this part