Tuesday, November 24th, 2009 by Warren E. Hathaway, John A. Hargreaves, Gordon W. Thompson, Dennis Novitsky This study was initiated, funded and distributed by: Policy and Planning Branch, Planning and Information Services Division Alberta Education, 11160 – Jasper Avenue, Edmonton, Alberta T5K 0L2 February, 1992 Executive Summary Yes! Light affects people [...]
Tuesday, November 24th, 2009 A solid state electronic ballast has become available in recent years. This ballast is lightweight, generates very little heat. The electronic ballasts that we recommend operate at 50,000 Hz, rather than the standard 60Hz of magnetic ballasts. The high frequency cycling effectively eliminates flickering and humming. Some [...]
Tuesday, November 24th, 2009 Several very recent studies, most notably research from a team headed by Dr. George Brainard at Thomas Jefferson Medical College in Philadelphia, have identified the specific wavelengths of blue light, 446-477nm, that are crucial in suppressing melatonin production in humans.1,2, 3,4 As Dr. Brainard notes, “This discovery [...]
Friday, December 4th, 2009 The relationship between daylighted buildings and occupant productivity had not been rigorously documented prior to this study done in 1999 for Pacific Gas and Electric. The Daylighting and Productivity Study examined the correlation between occupant productivity and exposure to daylight within retail and school buildings. The study [...]
Saturday, October 8th, 2011 A study with five 30 wt Indoor Sunshine®® CFLs suggests an increase in immune system function in 30 days. In 7 out of 9 subjects, blood tests showed a 22-79% increase in the most common white blood cells as measured by the Absolute Neutrophil Count (ANC). One [...]