Conversion of light intensity and precautions when increasing light intensity
July 05, 2023
Illumination intensity conversion and precautions when increasing the light intensity The light intensity has a greater impact on plants. For Xylophytes, photosynthesis is only beneficial under adequate light conditions, and yield and quality are improved. In the case of lack of light will hinder the growth of the plant, but for the shade plant, the light intensity requirements are not so strict, but he still can not be separated from the light, while the light intensity of the animal is also relatively large, in In the cultivation of agriculture, the photosynthetic active radiometer is often used in the cultivation of animal husbandry to measure the light intensity in the measurement environment, and appropriate regulation and control are performed to meet the needs of animals and plants.
Light is a kind of radiation energy, so the light energy emitted by various light sources has a certain intensity. The intensity of this light energy is called "light intensity." It is generally measured by candlelight. That is to say, a special whale oil candle is based on its luminous intensity in the horizontal direction as a base candle. Now the light source used for power generation, the unit of light intensity calculation is still based on candlelight, known as the international candle. We are customarily called Watts. The 25-watt electric light has a light intensity of 25 international candelas.
A foot-candle is the intensity of light per square foot one meter away from the light source. It can be said that it is a standard candlelight (I don't know if that's right) the light intensity in a square-foot vertical area at one meter. It is one foot candlelight.
Calculation formula: 1 standard candlelight = 10.76 Lux
In general, we use more incandescent or fluorescent lamps to illuminate. What is the light intensity of different wattage lamps?
Incandescent lamp wattage
Light intensity
Wattage of fluorescent lamps
Light intensity
10W
65lm
15W
490lm-560lm
15W
101lm
20W
700lm-800lm
25W
198lm
30W
1160lm-1400lm
40W
340lm
40W
1700lm-1920lm
60W
540lm
100W
1050lm
150W
1845lm
200W
2660lm
300W
4350lm
500W
7700lm
1000W
17000lm
When using the above light source to increase the light intensity in the environment, one thing to note is the problem of its lifetime. We use the photosynthetic active radiometer to measure incandescent light bulbs over lifetime and lifetime A comparison of the lamps revealed that the lighting intensity of the noisy incandescent lamp was much lower than the service life.