Beneficial Household Lighting Choices

Learn all about indoor lighting options and choose the best option for your healthy home.


| February 2018


Dr Rob Brown is unveiling obvious and hidden sources of toxicity within the home in Toxic Home/Conscious Home: A Mindful Approach to Wellness at Home (Healthy Berry LLC, 2018). Despite our best efforts to be healthy, Brown explains how and why our homes are silently making many of us sick while stressing the importance of proper energy flow with in the home. Safer alternatives are suggested to help the reader create a truly safe and healthy refuge. The thought of detoxing the home can be overwhelming, by taking it day by day and making one or two changes at a time will make all the difference. The following excerpt is from Chapter 5, “Food Preparation and Packaging.”

Interior lighting

Because we have created opaque housing to live in and lifestyles that carry us into the night, we have a need for interior lighting. The most common method for providing light to an interior space is to create a window that allows the sun’s light to enter, known as daylighting. During periods of insufficient daylight, the need for indoor light production is apparent. In many parts of the world today, people rely on fire for indoor light. In other parts of the world where electricity is readily accessible, indoor lighting is achieved through light bulbs, referred to in the industry as lamps.

Lamps are evaluated for their SPD, the assessment of emission at each wavelength in the visible light spectrum. This analysis is used to determine three unique qualities for each lamp, including color temperature, color rendering index, and light intensity. These qualities determine the overall color appearance of the light. Natural daylight has a broad, flat SPD and is thought by many to be best for health and well-being.



A light’s brightness or intensity is measured in lumens. A lumen is a standard unit corresponding to the amount of light generated by one candle flame. For comparison, daylight intensity is on the order of 50,000-100,000 lumens. Lamps with higher wattage provide brighter, more intense light.

Light’s color temperature is measured in the Kelvin (K) scale. Noon daylight is a white light with a corresponding temperature of approximately 5500K. Light bulbs that appear more reddish have a lower temperature than bulbs that are bluer in color. A typical warm (reddish) white fluorescent lamp may have a color temperature of 3000K while a cool white fluorescent bulb (more bluish) may have a temperature of 4100K. This is the opposite of what one might expect — the warmly-colored, reddish bulb is cooler in temperature than the cool-colored blue bulb.







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