Next Generation Luminaires Design Competition

Evaluation Criteria

The judges scored each entry on the following set of criteria:

  • Color appearance - Evaluation of this criterion will be based on the judging panel's visual evaluation of the color appearance of the installed luminaire. CCT data must be provided through LM-79-08 testing reports. Judges will also review the manufacturer's stated color consistency specification.
  • Color rendering - Evaluation of this criterion will be based on the judging panel's visual evaluation of the color appearance of objects illuminated by the installed luminaire. CRI data must be provided through LM-79-08 testing reports.
  • Appropriate illuminance - Horizontal and/or vertical illuminance for the application must be appropriate according to accepted lighting practice. Evaluation of this criterion will be based on the judging panel's evaluation of the light levels and distribution (uniformity and contrast) provided by the luminaire, and may also include measurement of light levels using a standard illuminance meter.
  • Appropriate luminance - This criterion addresses luminance of the luminaire surfaces. Judges will evaluate luminaire brightness in conditions as similar as possible to the intended application to assess discomfort glare and contrast. Photometric luminance of the luminaire must be provided by LM-79-08 testing data.
  • Serviceability and replacement - Entries must demonstrate attention to specifier and user concerns about follow-on service and replacement in the event of component failure and replacement of LED modules at end of life.
  • Energy efficiency - The efficacy (lumens/watt) of the entry will be evaluated and compared to other traditional sources for the intended application. The luminaire must deliver appropriate light levels to the task with lower wattage than comparable traditional luminaires for that task. Evaluation of this criterion will be based on assessment by the NGL judging panel and submitted luminaire performance data.
  • Product depreciation data - Information provided on product depreciation (luminaire depreciation test data/LM-80-08 data from the chip manufacturer, temperature measurement and TMP location) will be evaluated by the judges. Other documentation to substantiate life claims will be accepted and reviewed by the judging panel.
  • Dimmability - If the entry is intended to dim, the second 'table top' sample (with dimming equipment and local dimming control provided) will be evaluated for color constancy, dimming range, dimming smoothness, start conditions, and other criteria deemed appropriate by the judges. If product literature indicates that a product is dimmable, but no dimmable sample is provided, the evaluation will indicate that dimming could not be verified.
  • Cost - The judging panel will evaluate the cost of the entry compared to other traditional sources for the intended application. Contractor pricing for 1000 luminaires will be seen by judges for comparison but not published in NGL literature.
  • Aesthetic appearance and style - Evaluation of this criterion will be based on the judging panel's subjective evaluation of the aesthetic appearance of the installed luminaire.

The judging panel awarded bonus points for entries exhibiting desirable characteristics. Bonus points were available for the attributes listed below:

  • Adjustability/Flexibility - products that demonstrate adjustability of beam spread and color temperature.
  • Innovation - entries that demonstrate innovation in taking advantage of the unique LED characteristics. The judges will evaluate products for innovative features (performance or construction) that offer additional benefits or suggest new approaches to delivering effective lighting. Such features might include adjustable beam spread or color temperature, life indicators or other feedback systems, solutions to physical space or installation limitations, or altogether new ideas.
  • Dark-sky friendly - outdoor luminaires that are shielded to limit upward light emission, and minimize sky glow and light trespass. Especially useful information in evaluating outdoor luminaires includes ratings by lighting zone for backlight, uplight, and glare (BUG rating).
  • Other bonus points may be awarded at the discretion of the judging panel.

Indoor Competitions

Evaluation Highlights


Past Competitions

Timeline

NGL Judging Process
Behind the Scenes Videos

2015 Competition

2014 Competition

Questions?

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Competition Partners