Lumen (luminous flux) is a SI unit of measurement - the International System of Units. This is the light value denoted by "lm" or lm.
Lamp replacement
Calculations have long shown that an incandescent lamp is not the most effective option for lighting, especially when it comes to large rooms. The lion's share of the energy goes not to lighting, but to heating the filament, which makes the bulb more like a small heater.
The issue of productive energy consumption is especially important now, during a period of high consumption of resources and, which is especially important for consumers, high prices for utilities. Therefore, when buying, you should pay attention not to the power measured in watts, but to how much light the bulb will give. And just this parameter changes in lumens.
How many lumens in an incandescent lamp 100 W
Such lamps are most often used in residential premises. They give pretty good lighting and a comfortable color for the eyes. Since lumens show how much light the source emits, the larger the indicator, the brighter the lighting. However, these indicators can vary greatly, especially when it comes to different types of lamps. It is quite difficult to calculate how many lumens in an incandescent lamp are 100 watts. For example, a 20-watt lamp gives a light flux of 250 lumens, and if you double the power, the flux reaches 400 Lm. But a 60-watt light bulb has an indicator of about 700 lumens, 900 Lm is equal to a power of 75 watts. A light flux of 1,200 lumens is achieved if the incandescent lamp is 100 watts.
Power optimization
Sooner or later, people begin to think about how to save on electricity, because progress does not stand still. First, energy-saving lamps appeared , which, according to manufacturers, reduce energy consumption by two or three times. And now there are even more economical lamps - LED. Their only minus is a rather high price, so the main problem is that the new lamp should include both minimal energy consumption and the brightness of the incandescent lamp.
Cheating
LED lamps actually consume several times less energy, but the information claimed by manufacturers often misleads buyers. For example, they say that a lamp is similar to a 70-watt bulb at 500 Lm, but this can in no way correspond to reality. In order not to make a mistake with the choice, you must remember how many lumens in an incandescent lamp are 100 watts.
After buying such an element, a person is disappointed because there is not enough light and you have to change the device to a more powerful one, which is associated with additional costs, especially if the lamps were bought for the whole chandelier. However, when changing them, it is worth paying attention not only to such a value as lumen. Luminous flux / power is a ratio in the International System of Units (SI) called light output. Simply put, the parameter shows what brightness produces 1 Watt of a particular light source. Measured in lumens per watt.
How to choose?
Taking into account all the parameters, it is necessary to take into account not only how many lumens in a 100 W incandescent lamp, but also the luminous efficiency, which for 100 watts is 13.8 lm / W. For example: the same parameter for LED lamps can be from 10 to 300 (!) Lm / W.
Another indisputable advantage of an incandescent lamp is the transparency of the glass and the angle of propagation of light, equal to 360 degrees. Therefore, when replacing with other types (for example, the LED lamp has an angle half as much), lighting deterioration may be observed. In addition, it is incandescent lamps that are ideally suited for dimmers that can regulate not only brightness, but also energy consumption.
Labels
As a rule, information on how many lumens in a 100 W incandescent lamp can be found on the packaging. In addition, important parameters such as color temperature and color rendering index (CRI) are indicated there, choosing which correctly, you can get the most comfortable light shade for the eyes.
The color temperature of a conventional incandescent lamp is 2800 K (measured in degrees Kelvin). This value should be guided when choosing a shade of light, unless, of course, the premises are residential. For working areas (offices, hospitals, pharmacies, shops), neutral tones with a color temperature of 4000 to 5000 K are suitable, and galleries and exhibition halls are recommended to be lit with fluorescent lights (5000 K and above).
Accuracy
If for some reason it is important that the lighting when replacing the lamps remains exactly at the same level, you can pre-measure the luminous flux with a special instrument - a luxometer. Lux is an indicator of the ratio of lumens to the area of โโa room (1 lux equals 1 lumen per square meter). This usually applies to various institutions where it is necessary to monitor the compliance of lighting with state regulations.
Effective Energy Saving Tricks
One of the interesting tips from professionals is to use lamps of different capacities. For example, more powerful lighting is required in the working area of โโthe room, and in some of its parts you can do with fewer suites. The second tip is to turn on the lights separately. Such a trick will allow not only to consume less electricity, but also to separate zones in studio apartments or large rooms.