The Illuminating Engineering Society (IES) has re-affirmed 10 existing lighting standards: BSR/IES LM-88-18(R27) Approved Method: Optical and Electrical Measurements of AC-LED Packages and Arrays or Modules BSR/IES LM-35-20(R27) Approved Method: Photometric Testing of Floodlighting for HID or Incandescent Lamps BSR/IES LM-46-20(R27) Approved Method: Photometric Testing of Indoor Luminaires Using HID or Incandescent Filament Lamps BSR/IES LM-73-04(R27) Approved Method: [...]














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