Pain, Lighting & The LED

Light Frequency/Flickering

The flicker and glare of fluorescent and incandescent lighting has been argued by countless doctors and researchers as a major cause of headaches, migraines, eye strain, stress, anxiety, and fatigue in the workplace. It is also one of the most difficult lighting problems to address. Light flickering occurs because of slight voltage fluctuations and also overuse of fluorescent bulbs and ballasts. While still visibly producing light, many fluorescent lamps and ballasts are well beyond their recommended lifespan and should be changed.  In addition, the ultraviolet (UV) light produced inside the fluorescent light tube also fluctuates (despite the age of the light or the voltage fluctuations).  Flickering frequency above 40-50 cycles per second is generally not visible by the human eye, although the human sensory system will unconsciously recognize the flickering and cause headaches, migraines, fatigue, and even forms of depression such as Seasonal Affective Disorder (SAD).

Health Benefits of Solid-State Lighting

Solid-State LED lighting is mercury free, does not flicker, does not use a ballast, and is a full-spectrum light, producing light across all wavelengths useful to plant and animal life (closest to natural daylight).  The two most common measurements of light quality are Correlated Color Temperature (CCT) and Color Rendition Index (CRI). A CCT of 5500K with a high CRI (most commonly offered by LED lighting) is considered natural daylight white, and is often used in modern lighting treatments as "Lightbox Therapy" for Seasonal Affective Disorder and some sleep disorders.

Stateline Eco Electric Corp.
phone (541) 508-3098
eFAX (888) 988-6533

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