Lumen
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Switch cd to lm
Lumen Unit Table
A list of units symbol and data.
From lmTo cdAll conversion
1 lm1 cd
2 lm2 cd
3 lm3 cd
4 lm4 cd
5 lm5 cd
6 lm6 cd
7 lm7 cd
8 lm8 cd
9 lm9 cd
10 lm10 cd
Description

Lumen (lm): Measuring Luminous Flux

The lumen is the SI unit of luminous flux, quantifying the total amount of visible light emitted by a source per unit of time. One lumen is defined as the luminous flux emitted within a unit solid angle (one steradian) by a point source with a uniform luminous intensity of one candela. This unit is crucial for evaluating the overall brightness of light sources, such as bulbs and LEDs.

In practical terms, lumens provide a direct measure of a light source's output, enabling consumers and professionals to assess and compare the brightness of different lighting products. Higher lumen values indicate greater light output, which is essential for applications requiring specific illumination levels, from residential lighting to commercial and industrial settings.

Candela (cd): The SI Unit of Luminous Intensity

The candela is the SI base unit for measuring luminous intensity, representing the power emitted by a light source in a particular direction. Defined by the International System of Units, one candela corresponds to the luminous intensity of a source emitting monochromatic radiation at a frequency of 540 × 1012 hertz with a radiant intensity of 1/683 watt per steradian. This unit is fundamental in photometry, providing a standardized measure for the brightness of light sources as perceived by the human eye.

In practical applications, the candela is essential for designing lighting systems, ensuring consistent illumination levels in various environments such as workplaces, public spaces, and homes. Understanding and utilizing the candela allows engineers and designers to create lighting solutions that meet specific intensity requirements, enhancing visual comfort and energy efficiency.

Complete list of conversion for Lumen
Lumen (lm)

1 Lumen = 1 Candela

Convert 2 lm → cd

1 Lumen = 1 Candlepower

Convert 2 lm → cp

1 Lumen = 1 Lux

Convert 2 lm → lx

1 Lumen = 0.09290312990644656 Footcandle

Convert 2 lm → fc

1 Lumen = 0.0001 Phot

Convert 2 lm → ph

1 Lumen = 1 Candela per square meter

Convert 2 lm → cd/m²

1 Lumen = 1 Nit

Convert 2 lm → nt

1 Lumen = 0.0001 Stilb

Convert 2 lm → sb

1 Lumen = 0.0003141592653587727 Lambert

Convert 2 lm → L

1 Lumen = 0.2918635079290997 Footlambert

Convert 2 lm → fL

1 Lumen = 1 Lumen second

Convert 2 lm → lm·s

1 Lumen = 1 Lux second

Convert 2 lm → lx·s

1 Lumen = 1 Rayleigh

Convert 2 lm → R