Source: Energy Manager Today    By Christina Halfpenny, Executive Director of the DesignLights Consortium.    2.28.19 

(Article condensed; see link for the full article below)

Incredible as it may seem, Americans, on average, spend 90% of their time indoors, according to US EPA research. No doubt, we could use more time in the fresh air and sunlight. But, for better or worse, that’s a huge chunk of time living and working under artificial lights, and it argues for developing and promoting lighting products that help people feel and perform their best.

In January, the DesignLights Consortium (DLC) launched a new draft policy aimed at meeting that goal by providing transparency into the quality of light produced by products included on our Qualified Products List (QPL), a tool used by scores of utility companies across the US and Canada in designing incentive programs for commercial and industrial lighting customers.

Since the inception of our QPL in 2009, the DLC has raised the efficiency bar for LEDs three times, aiming to shrink the portion of electricity devoted to lighting in the commercial and industrial sector, and thereby lowering overall energy consumption and greenhouse gas emissions.  The newly-unveiled policy, dubbed Solid-State Lighting Technical Requirements V5.0, still prioritizes greater efficiency but also focuses on “quality of light”– defined as aspects of light that impact people’s productivity, performance, comfort, mood, safety, health, wellbeing and more. Once the policy is final next year, determining a product’s eligibility for the QPL will hinge increasingly on non-energy factors such as color and spectral quality, glare, flicker, and the ease with which lights can be dimmed and otherwise controlled to complement various settings and applications. Read the full article at

Comments by RG:  I believe this is great news for end users and all involved as goals of achieving energy efficiency will be met while also enhancing the quality of lighting systems. Reach out to me here or at if I can help you save energy and improve your lighting.