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The amount of light that is produced by a lamp is called lumens and the more lumens the lamp has the brighter it will be.
Lumens work in conjunction with kelvins and watts should not be taken in isolation of each other, for example if you
had a very warm white lamp at 2,700 kelvins and it produced 300 lumens and you then had another lamp which was a cool
white 6,000 kelvins which also produced 300 lumens the cooler lamp colour would always appear brighter to the naked
eye than the warmer one this is due to the receptors in the eye that react better to a white light spectrum. Another
factor on how bright a light may appear is contrast so if you shine a white 6,000 kelvin light on to a dark wall and
a warm 2,700 kelvin lamp on to a white wall the warmer lamp would appear brighter due to the contrast of the material
it is focused on. So when choosing a lamp always take in to account the area you want to illuminate and think about Kelvins
( colour ), Lumens ( brightness) and contrast ( colour of area ) The more lumens produced per watt the more energy
efficient the lamp will be, for example you can have a 25w candle lamp that produces 170 lumens or a more energy efficient
18w candle lamp that produces 180 lumens so even though the wattage is smaller the lumens are greater which makes it
use less electricity. That's what makes LED lights so energy effective as they can produce 700 lumens from a 5w lamp.
|Beam Angle:||36 degree|
|lamp life:||25000 hours|
|colour temperature:||2700 Kelvin|
|additional information:||equivalent to 50w incandescent lamp|