IES LM-79 is an approved method for testing electrical and photometric measurements of solid-state lighting products. LM-79 contains procedures for performing reproducible measurements of LEDs properties, including: total flux, electrical power, efficacy and chromaticity.lm 79 testing lab, Photometric Testing, Luminaire Testing, LED Tests LM-79, Mumbai, Ahmedabad, Delhi, Kolkata, Bengaluru, Hyderabad, Chennai, Pune, Surat, Visakhapatnam, India. Call: +91-8196980555 E-mail ITCIndiaOne@Gmail.Com