The Illuminating Engineering Society has published two new testing procedures standards for LEDs:
* IES Approved Method for Measuring Luminous Flux and Color Maintenance of LED Lamps, Light Engines, and Luminaires (LM-84-14)
* Approved Method for Electrical & Photometric Measurements of High Power LEDs (LM-85-14)
LM-84-14 is written to develop standard operating procedures for laboratories to test for these variables and provide reliable results that can be compared against other similar LED light sources.
LM-85-14 was developed to provide uniform test methods to measure the optical performance of LEDs at these higher temperatures, which can be compared with the results of other high power LEDs.
Both LM-84-14 and LM-85-14 are available in print or as a PDF download from the IES at the IES store (here (LM-84) and here (LM-85). LM-84-14 List price: $20.00; IES Member Price: $14.00. ISBN: 978-87995-288-4. LM-85-14 List price: $25.00; IES Member Price: $17.50. ISBN: 978-87995-289-1
