General service incandescent lamps.

CFR · 2024-01-01 · US · Title 10

(a) (1) Units to be tested. (i) When testing, use a sample comprised of production units. The same sample of units must be tested and used as the basis for representations for initial lumen output, rated wattage, color rendering index (CRI), correlated color temperature (CCT), and lifetime. (ii) For each basic model, randomly select and test a sample of sufficient size, but not less than 10 units, to ensure that— (A) Represented values of initial lumen output and CRI are less than or equal to the lower of: ( ( (B) Represented values of rated wattage are greater than or equal to the higher of: ( ( (2) Any represented values of measures of energy efficiency or energy consumption for all individual models represented by a given basic model must be the same. (3) Represented values of CCT must be equal to the arithmetic mean of the sample. (4) Represented values of lifetime must be equal to or less than the median time to failure of the sample (calculated as the arithmetic mean of the time to failure of the two middle sample units (or the value of the middle sample unit if there are an odd number of units) when the measured values are sorted in value order). (5) Calculate represented values of life (in years) by dividing the represented lifetime of these lamps as determined in paragraph (a)(4) of this section by the estimated daily operating hours as specified in 16 CFR 305.23(b)(3)(iii) multiplied by 365. (6) Represented values of the estimated annual energy cost, expressed in do

official document · source cfr-2024 · id 10:§ 429.66