| The earth gets about 133,200 lumens per square meter from the sun and finds that that square meter has the sun directly above its head. We can also divide this number by the total power of the sun, 133200/1366 = 97.5 lumens per watt. This is known as luminous efficiency, the light output of the sun per watt of power.
Direct sunlight has a luminous flux of approximately 93 lumens per watt of radiated power. Multiplying the number 1,050 watts per square meter by 93 lumens per watt shows that strong sunlight produces a brightness of approximately 98,000 lux (lumens per square meter) on a surface perpendicular to sea level.
The optimal light ranges from 7000 to 7500 lumens per square meter. If the installation requires minimal lighting, it should be around 2,000 lumens per square meter. For mid-range measurements, this should be around 5,000 lumens per square foot.
The result is the brightness of the sun on earth, which is equivalent to 133,000 lux. From this result and if we know the distance between the earth and the sun, we can immediately determine the luminous flux of the sun, the lumen. Division by sun shine, candle.
Light a billion times brighter than the sun’s surface has now been created in the laboratory, making it the brightest light ever produced on earth. The record-breaking laser beam revealed the new properties of light and could be used in medical devices or to make more powerful computer chips.
The brightness or brightness level of light bulbs in your home can vary greatly, so the following rule of thumb applies: To replace a 100 watt (W) light bulb, look for a 1600 lumen light bulb. If you want something brighter, choose smaller lumens; if you prefer stronger light, look for more lumens.
The brightest flashlight in the world - enough power to set the paper on fire. Brightness is usually expressed in lumens, a measure of the overall effect of a light source. A classic Maglite mini flashlight has a peak output of around 15 lumens. A typical LED headlight delivers 50 to 100 lumens.
A lamp is as bright as a birthday candle half a meter away. In other words: a standard 60 watt bulb produces around 750,850 lumens of light. The 1000 lumen flashlight can produce a range of 150-200 meters.
With lithium technology, it can produce 2,300 lumens of light powerful enough to start a fire or produce eggs.
A single car or motorcycle low beam is around 700 lumens and a typical high beam is 1200 lumens.
Instruments for measuring insulation are called pyranometers (from the Greek pyr (fire) and ano (air). Ideally, pyranometers should measure total solar radiation across the electromagnetic spectrum (broadband radiation).
Intensity under different conditions
1.6 billion nits
In cloudy weather, the amount of lumens produced by the sun drops to about 1000.
60.0 00 lumens
Recommended delivery 2.0 m² / plant
The effect of LED light colors on plant growth
Old where The technologists A lfram incandescent was rated at only about 15 lumens / watt. LED technology can generate around 60 lumens per watt. Lumen and watt conversion table for reference1:
With the metric system, a lumen is measured in square meters or lux. So a candle corresponds to about 10 lux or 10.57 lux, a higher number of lumens indicates a stronger and more intense light, while a lower number of lumens represents an increasingly weaker illumination.
Table lumens in watts