References
- Testing Procedures Committee of the IES, “IES approved method for electrical and photometric measurements of general service incandescent filament lamps”, IES LM-45, Journal of the Illuminating Engineering Society, Vol. 3, No. 2, January 1974, p. 163.
- Testing Procedures Committee of the IES, “IES approved method for life testing of high-intensity discharge lamps”, IES LM-47, Journal of the Illuminating Engineering Society, Vol. 4, No. 1, October 1974, p. 66.
- Testing Procedures Committee of the IES, “IES approved method for photometric measurements of high-intensity discharge lamps”, IES LM-51, Journal of the Illuminating Engineering Society, Vol. 4, No. 3, April 1975, p. 229.