ENERGY STAR TM-28 计算器
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ENERGY STAR® TM-28 Calculator
February 2016
Note: Users should download a new copy of this calculator for each use, to ensure use of the most up-to-date version of the calculator. Users are encouraged to bookmark the hyperlink to this calculator. Project-specific copies complete with calculations may be saved on a local drive.
This calculator is based on the Illuminating Engineering Society’s TM-28-14: Projecting Long-Term Luminous Flux Maintenance of LED Lamps and Luminaires. Calculator results have been reviewed by the U.S. National Institute of Standards and Technology (NIST). Calculations are locked; only data entry cells may be modified.
Enter all product and test data as instructed on the "TM-28 Inputs" tab. The complete TM-28 report will appear on the "TM-28 Report" tab.
Questions may be directed to lighting@.