The U.S. Environmental Protection Agency (EPA) recently published the first draft of its ENERGY STAR Luminaires specification, version 2. The specification focuses on residential lighting products such as accent, cove, outdoor, and desk task lights as well as downlights and undercabinet luminaires.
The primary goals for version 2 are:
- Increasing efficacy levels to reflect today’s best available technology performance
- Simplifying the spec requirements, testing, and certification process
- Broadening the program scope to increase the availability of ENERGY STAR certified luminaires
The version 2 draft retains most components of the existing program spec. It also raises the bar for several performance requirements. These include:
Efficacy levels Proposed efficacy increases for directional luminaires range from 22% to 107%. While efficacy requirements for non-directional luminaires have remained constant, higher light source efficacy levels for luminaires relying on the fixture for light diffusion (instead of secondary optics) have been added.
Color Rendering Index (CRI) CRI requirements have been expanded to include R9 performance. (R9, a special color rendering index, is especially important for the appearance of skin tones, among other materials.)
Dimming The required light output range for dimming luminaires has been reduced from 35% to 20%.
Standby Power Consumption The maximum allowable power consumption for luminaires with integral motion sensors, photo sensors, or connected functionality has been lowered from 1.0 W to 0.5 W.
Lifetime A 50,000 hours L70 lumen maintenance lifetime minimum for LED lamp-inseparable luminaires has been added.
The EPA hopes to finalize version 2 by mid-year. For additional information, visit the ENERGY STAR Luminaires version 2 webpage. Interested stakeholders are invited to submit comments to firstname.lastname@example.org by January 30, 2015 (enter ENERGY STAR Luminaires 2.0 First Draft Comments in the subject line).