IES LM-79-08 PDF Download

The IES LM-79-08 standard is a set of guidelines that outline the procedures and precautions to be followed when conducting electrical and photometric measurements of solid-state lighting (SSL) products. These products include LED-based lighting fixtures and integrated LED lamps that operate using AC mains power or a DC voltage power supply.

The standard defines SSL products as those that utilize LEDs as the optical radiation sources for illumination purposes. LEDs emit incoherent optical radiation when biased in the forward direction, and white light can be produced through a combination of LED colors or the excitation of phosphors by LED emissions.

The standard specifies the photometric measurements required for SSL products, such as total luminous flux, luminous efficacy, luminous intensity, chromaticity coordinates, correlated color temperature, and color rendering index. It also outlines the electrical measurements for AC-powered and DC-powered SSL products, including voltage, current, power, frequency, and power factor.

It is worth noting that the standard focuses on individual SSL products and does not cover the determination of performance ratings that may vary among different products. Additionally, it acknowledges that measurements conducted under non-standard conditions should be reported with the specific conditions stated in the test report.