fff Compatible Short SpO2 Sensor - 1863 LNCS DCI

What are lumen?How to choose the right lumens?

2024-04-10    /    NEPE

Lumen describes the brightness of a lamp and is a new standard for lamps (mainly LED lamps). The wattage used by older light bulbs has been mistakenly thought to be a measure of the brightness of the fixture, but is actually just a measure of energy consumption. When LED lights entered the market, lumens began to be used as a standard for brightness.

Lumen is a physical unit that describes luminous flux. The physical explanation is that one candle (cd, Candela, a unit of luminous intensity, equivalent to the luminous intensity of an ordinary candle) is on a solid angle (a unit sphere with a radius of 1 meter). The angle represented by the spherical cone corresponding to the 1 square meter spherical cap corresponds to the total emitted light flux generated at the central angle of the mid-section (approximately 65°).

The international unit of luminous flux is lumen (symbol lm).

Simply put, more lumens means more light. When choosing a light source for functional or general lighting, you should start with a high-lumen fixture (ideally between 400 and 806 lumens), although you can go higher if you need to. On the other hand, the lumens of ambient lamps are best between 220-360, and the lighting effects of such lamps are generally softer.

If you want both soft lighting effects and sufficient illumination, you can arrange several more low-lumen light sources at the same time. However, it is not recommended to increase the lighting brightness by adding high-lumen light sources, as this will destroy the overall lighting atmosphere.

Functional lighting should have lumens between 806-1520

General lighting should have 400-470 lumens

Ambient lighting should have 220-360 lumens

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