with the European directives. For LED lamps and modules, this conformity will include:
• Full safety as specified in related IEC/EN safety standards (similar for all lighting products); • A basic quality level, including a minimum luminous efficacy as well as some other performance features.
Recommendations for LED Lamps and LED Modules For LED modules with at least 600 lm total light output, the CELMA/ELC proposal suggests a minimum luminous efficacy of 50 lm/W as of 2012. For modules of less than 600 lm light output, the efficacy requirements as already specified in EU directive 244/2009 for non-clear lamps should apply. In view of expected technical improvements, these initial minimum efficacy values should be tightened by 20% in 2015.
These basic levels were defined considering that they would be re- quired regardless of the specific module design or operating condi- tions which usually have significant impact on the module efficacy. For LED lamps, CELMA/ELC recommend the same minimum efficacy requirements that are already applicable for conventional lamps. In addition, CELMA/ELC have provided instructions for equivalency of (directional and non-directional) LED retrofit lamps with those incandescent lamps the LED lamps claim to replace. The recom- mendations also include a pre-defined set of correlated colour temperatures to cover the spectrum between warm-white and cold-white in discrete steps.
It should be noted that these requirements relate to replaceable white LED lamps and LED modules and are subject to the detailed technical specifications which are currently being worked out by IEC standardisation committee TC 34 and sub-committees thereof and which are expected to be available as PAS documents (Publicly Available Specifications) in the course of next year.
Minimum Requirements versus Top Performance Different problems require different solutions. That’s why custom- ers/consumers will always demand a range of different LED lamps and LED modules to choose from in view of price, performance, functionality, suitability for the given application, etc. The CELMA/ELC quality recommendations are intended to guaran- tee a basic performance level within this range and to keep bad products out of the market. They are not intended to limit the choice of the customer/consumer or to promote exclusively top performing products. Of course, high quality will always be an option within the full range, typically at a premium price, but it should not be the only option and the range should be wide enough to leave sufficient space for differentiation.
www.celma.org www.elcfed.org
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