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FAQ: What is the difference between measured light and perceived light?
In a note titled “Measured light vs. perceived light”, Lutron describes the difference as follows… “The human eye responds to low light levels by enlarging ...Read more
FAQ: Why is colour temperature important in room lighting?
Colour temperature (or correlated colour temperature, CCT) is a number indicating the degree of yellowness or blueness of a white light source. Measured in kelvins ...Read more
FAQ: Why is the life span of an LED measured as lumen depreciation?
One of the most attractive features of LED lights is the fact that their lifespan is much longer than of incandescent, fluorescent or HID lamp ...Read more