Lighting. Saturday , September 15th , 2018 - 18:19:25 PM
Solar-powered lights are becoming more and more popular, saving money while reducing energy consumption. As technology improves over time, batteries are made to charge quicker with less light and provide energy for a longer time. Light bulbs also become more efficient, using less power to emit more light, resulting in greater energy efficiency and better products for the consumer and of course for the planet. Aside from reducing energy consumption, solar-powered lights offer an additional advantage in that they do not require any wiring and can therefore be placed almost anywhere in the garden, as long as they have enough sunlight in order to charge their batteries during the day. Solar-powered garden lights often include a function to turn on automatically after dark, so it's a 'set and forget' product that is truly low maintenance.
The proper name for color temperature is The Correlated Color Temperature (CCT). The CCT is described in degrees Kelvin (starting at absolute zero). It is backwards in a way, because when a color of a light source has a high temperature associated with it, it is considered to be a cool color, and if it has a low temperature it is a warm color. Lighting sources with a CCT rating below 3200 K are usually considered "warm", while those with a CCT above 4000 K are usually considered "cool" in appearance. Using a light with a high Correlated Color Temperature will give a greater perception of brightness in the space than lower ones. When calculating a color temperature (CCT) we take the light we are looking at, and compare it to a Blackbody standard base line color model that has radiant power at all wavelengths of light, and where our color falls according to the base model will tell us what our color temperature is. Even at a given Correlated Color Temperature, color can vary. To avoid such variation, the EPA recommends you purchase bulbs from the same manufacturer at the same time. The color temperature rating is listed on the product packaging.
Improvements in the color rendering of standard cold white fluorescent lamps have given rise to a wide range of products such as full spectrum, deluxe warm white and cool white light bulbs. Additionally electronic ballasts now allow easy dimming while alleviating the issues of lamp flicker, making fluorescents a more attractive lighting option. With their efficient light output and low cost, they remain the most economical way of providing uniform, shadow frees lighting over an extended period of time.
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