Incandescent reflector 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, lamp efficacy, 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 represented values of average lamp efficacy, CRI and initial lumen output are less than or equal to the lower of: (A) The arithmetic mean of the sample; or, (B) The lower 95 percent confidence limit (LCL) of the true mean divided by .97, where: (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 and rated wattage 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) mult

official document · source cfr-2024 · id 10:§ 429.55