Most users switch to fluorescent light bulbs. New devices replace classic incandescent bulbs. LEDs are more durable, more economical, have several lighting options: daylight, warm and cold light. Different designs and sizes help diversify the interior. The power of LED lamps differs from the performance of Ilyich bulbs. To choose a replacement, you need to clarify some data and compare with the developed table.
Benefits of Using LED Devices
Lamps based on energy-saving LEDs gain great popularity every year. This trend is promoted by a significant number of advantages that luminescent devices possess. The main ones include:
- lifetime;
- increased light output;
- environmental friendliness (some dangerous elements are absent);
- reduced power consumption.
Such advantages bring innovative light bulbs to the "leaders", and after a while they replace the usual bulbs completely. However, for each item there are some reservations.
Manufacturers claim that LEDs consume less power by 9 times. In most cases, this statement is a common publicity stunt. This is especially true of cheap "Chinese" counterparts (they usually go without marking, license marks, and have a lower cost).
Durability - about 30-40 thousand hours under normal use. These values are obtained in laboratory tests. In an artificially created environment, the lamps do not heat up above 25 ° Celsius. In practice, the temperature can reach 75 ° Celsius, so the ratio of service periods is less.
Correlation table of power and luminous flux
When changing bulbs, it is necessary to take into account the correspondence of the power of incandescent and LED lamps, as well as the strength of the light flux. Characteristics are measured in the same quantities. To navigate in the indicators and correctly translate the values, you can be guided by the following ratio table.
| Ilyich bulb (W) | LEDs (W) | flow force (Lm) - approximate value |
| 20 | 2-3 | 250 |
| 40 | 4-5 | 400 |
| 60 | 8-10 | 700 |
| 75 | 10-12 | 900 |
| 100 | 12-15 | 1200 |
| 150 | 18-20 | 1800 |
| 200 | 25-30 | 2500 |
Focusing on these indicators, you can choose a light bulb for replacement. For example, a 60W LED lamp corresponds to a 7W LED lamp - so that the conversion is correct, they are oriented according to the data on the package. On the other hand, it is necessary to take into account general characteristics and operating conditions.
The presented values indicate one of the main advantages of LEDs - economic benefits.
Calculation of the optimal power of LED lamps
Before repairing, installing electrical wiring and fixtures, it is necessary to calculate the rated power indicators in order to avoid burnout of devices, short circuits, and other malfunctions. To determine the final data you need to know:
- level of natural lighting - A;
- the area of the room (room, for example) - B;
- total number of lighting devices - C;
- luminous flux - D.
To calculate the luminous flux, I use the formula: D = A * B / C. The light level is calculated as follows: A = C * D / B.
For each square meter, it is necessary to determine the location of the lamps in the room to capture the entire space. At the same time, the efficiency of LEDs is maximum in a radius of 120 °.
LED lamp power comparison
Before replacing bulbs, it is necessary to study the general characteristics. A comparison of the pros and cons will allow you to choose the right model. The durability, brightness, power of street LED lamps differ from incandescent and fluorescent lamps. Lamps are mainly used in the dark, so it is desirable that the light is soft - usually choose a warm, yellowish. Such light comes from the classic products of Ilyich, but they do not differ in a long service life. Other characteristics are important.
Comparison with incandescent lamps
Luminous efficiency is one of the main indicators. For incandescent lamps, the limit is 8-10 Lm / W, LEDs are 90-110 Lm / W, some models have indicators of 120-140 Lm / W. The difference is at least 8-12 times. The power of the LEDs is 5 times lower, but the brightness of the glow remains at the same level.
Heat transfer is an equally important characteristic. The glass of classic products is heated to 170-250 ° Celsius. Therefore, they are considered the most fire hazardous; installation in wooden houses is not recommended. The maximum heating temperature of the LEDs is 50 ° Celsius.
The service life is unequal and is one of the main reasons for the replacement. According to the manufacturer, the LED lamps work for about 30-35 thousand hours under the right conditions of use.
Efficiency - coefficient of performance - this is an indicator that shows how much electricity is converted into light and which into heat. For LEDs, the indicator is the highest and equal to 90%, for incandescent lamps - only 7-9%.
Comparison with halogen lamps
To replace the lamp in the lamp with a halogen product does not require much time and effort. The light turns out to be warm, close to daylight, sunny. At the same time, the cost of products is acceptable, affordable to most buyers. Therefore, production and consumption remain at a high level. Most halogens are found in car headlights.
Efficiency is low –15%. Electricity is spent on heating and maintaining glow. Average life is 2,000 hours. The indicator directly depends on the frequency of switching on. In some cases, the installation of additional equipment is required - special dimmers that provide smooth switching and extend the service life.
Comparison with fluorescent light sources
The main difference is the principle of operation of the devices. Luminescent ones work due to mercury vapor. Under the influence of an electric current, the substance heats up, an ultraviolet glow appears, which charges the phosphor (a special chemical compound). It glows, creating a different spectrum of lighting.
In the LEDs there is also a phosphor, which covers the crystals. Under the influence of current, the semiconductor glows, the color is always blue.
The main difference is the value of the efficiency. LEDs do not use additional elements, so the indicator of these products is always higher.
Reasons for the differences
The differences between the lamps are due to the structure of the devices. Ilyich’s bulb works by heating a tungsten filament; the glow turns yellow. Lamps of the latest generation have a different approach - light is formed after the activation of various chemical compounds (phosphor).
An additional advantage - technology allows you to receive light in different shades (daylight, warm, cold). Different base diameters allow you to quickly find the best option for replacement.
Illich's bulbs have a limited number of sizes and diameters of socles. Some modern models are not suitable for all types of bulbs. Therefore, when buying, you should carefully study the technical parameters of the devices.
Manufacturers Tricks
In recent years, the production of bulbs has grown, and some characteristics have changed. For example, in 2014, a 10-watt lamp produced a luminous flux of 1,000 lm.Products of 2012-2013 have indicators no more than 700-800. Manufacturers prefer not to mention such nuances. You should choose those with a higher flow value (indicated on the package, measured in Lm).
The life span marked on the factory boxes is overstated. In addition to the service period, overestimated luminous flux values are indicated. For example, one manufacturer indicates 8 W and 650 Lm, and another - 8 W 1000 Lm. In the second case, the numbers are exaggerated.
Another situation is an understatement. This means that they can indicate a power of 5 watts, and in fact a light bulb of 7 or 8 watts. Electricity consumption is high, and efficiency is much lower. You can avoid such situations if you purchase bulbs at points of sale that have already been verified. You can read reviews on the Internet, check with friends.
Power consumption
The main reason for replacing Ilyich’s light bulbs with LED ones is the saving of consumed electricity. The value of incandescent lamps ranges from 40-100 watts. For LEDs, this figure is 10 times lower. This means that at the same level of luminous flux, LED products consume less electrical voltage.
LED lamps every day become more popular. When buying, take into account the reputation of the manufacturer, the store. According to the characteristics of the products, the necessary power (in equivalents according to the tables), the luminosity level, the sizes of the socles are taken into account. In order for the savings to be valid, it is recommended to purchase lamps with the calculation of the wiring values and the number of electrical devices.
The life of light bulbs with LEDs is higher than others. A necessary indicator is the quality of work during the period. According to the results of laboratory tests, it turned out that over time, the power of the light flux decreases. The power consumption of electric energy remains unchanged, but the glow fades. With constant use, the difference is difficult to notice. But if you replace the used lamp with a new one, the difference will be obvious.
