What is the relationship between LED lamp illuminance and brightness?
Led lamp illuminance: the illuminance unit is usually LUX, the test instrument is relatively simple, using a common illuminance meter, it is available in the market, and the price is cheap
Led tube luminous flux: The unit of luminous flux is usually LM, and the testing instrument is more complicated. The integrating sphere is used. The instrument is expensive and special.
Led tube brightness: the illuminance per unit area is the brightness.
Usually we can use a cheap illuminance meter to test the illuminance to estimate the brightness, and it can also achieve the test effect and purpose.
Indoor lighting design is actually the design of indoor brightness distribution. But in the actual design process, what are the indicators that we often use to measure the brightness of a space?-Illumination. The brightness distribution design is said to be good, why should illuminance be used to measure it? What is the relationship between illuminance and brightness?
Attached is the relationship between illuminance and brightness for you to see at a glance
From a basic level, we all know that: lamps are used to emit light to brighten, so everyone has this intuition, which is to try to use "how bright a lamp is" as a judgment indicator of a lamp. However, this turned out to be wrong. Therefore, it is more scientific to measure from the brightness and illuminance. You cannot judge intuitively with your eyes, and you still have to believe that the instrument is more accurate.
