Amala Eunice. Lighting. May 09th , 2017.
LED lightingmanufacturers expect LED life to reach 100,000 hours MTBF (The average time between failures, the standard used by traditional lighting manufacturers to measure the life of the light source). But, like all basic light sources, like LED The luminous flux also fades with time. So although the LED light-emitting time can be very long, MTBF is not the only consideration to determine the service life. The attenuation of LED lumens is affected by many environmental conditions such as ambient temperature, humidity and ventilation. Lumen fading is also affected by control, thermal management, current levels and many other electrical design considerations (cited above for US CK).
Depending on the ambiance and plants in a garden, warm white to daylight LEDs can be used to illuminate the area at night. Recently, solar-powered LEDs are also available in the market, which automatically illuminate at dusk, without the need of an electricity supply; ideal for the outdoors.
Quick Tip: Have independent controls and dimmers for each light source to control the amount of light in the living room, and set the ambiance at any given time. This will also save energy and its costs.
Another popular technique is the grazing technique. This technique also is used for highlighting a focal point of the room. It may be a wall, a frame, or a fireplace. The process of determining the space between two recessed light fixtures is the same as that in wall washing technique. You first need to determine the length of the wall and then divide it by the recommended wattage for a specific area. The number that comes as an answer of this calculation, is the distance that you want keep between two recessed lamps.
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