Agree, it’s nice to realize that the life of your LED lamp will be 5, or maybe more, years. At least that's what it says on the packaging. In fact, many sellers of LED lamps and tapes overestimate this indicator simply with the aim of attracting a buyer. After all, each of us somehow wants to take care of energy saving at home or at work, and for some it is always advisable to do this with minimal expense.

This is where a frugal consumer lies in wait for a tricky trap: the average LED lamp has about 7 times more light output compared to an incandescent lamp. And this benefit overlaps with any other, seemingly desirable, arguments. But in vain. In fact, there are some factors that it is advisable to pay attention to when choosing an LED lamp, and not to miss the cheapest ...

No matter how economical the LEDs are, there is no limit to perfection. And the next step in optimizing efficient light sources is luminaires with motion sensors for houses and apartments. Imagine that you no longer need to press the switch button, but just enter the room and the light will turn on itself. The lamp will notice you and immediately light the light.

At the same time, we are not talking about a “smart home” system with some kind of complex software. On the contrary, the motion sensor is built directly into the lamp or is connected directly to it by a wire. Such a sensor works on the principle of an infrared sensor, the so-called "volume", which is completely safe for both humans and animals. Where can this be claimed? Firstly, in the hallways and hallways of houses and office buildings. The lamp turns on for a while while a person is walking along the corridor, then goes out, and you do not need to press anything ...

The range of lamps today is quite wide, and it is not at all surprising that someone may have difficulty choosing lamps. Someone still uses incandescent lamps, while someone has already switched to more economical compact fluorescent and LED lamps. Meanwhile, Federal Law No. 261 “On Energy Saving” significantly limits the possibility of using incandescent lamps in the future.

In order to help the consumer make the right choice, we compare the power of various types of lamps. Let us consider how the power of an incandescent lamp, a compact fluorescent lamp, and an LED lamp correlate with approximately equal requirements for the luminous flux emitted by them. We will compare the following three lamps: a 75 W incandescent lamp, a 15 W compact fluorescent lamp, a 9 W LED lamp ...

Not every housewife will immediately figure out how to convert amperes to watts or kilowatts, or vice versa - watts and kilowatts to amperes. Why might this be required? For example, the following numbers are indicated on the socket or on the plug: “220V 6A” - marking reflecting the maximum permissible power of the connected load. What does it mean? What is the maximum power the network device can be plugged into such an outlet or used with this plug?

To get the power value, it’s enough to multiply these two numbers: 220 * 6 = 1320 watts - the maximum power for a given plug or socket. Say, an iron with steam can be used only on a deuce, and an oil heater - only at half the power. So, to get watts, you need to multiply the specified amperes by volts: P = I * U - multiply the current by voltage (in the outlet we have about 220-230 volts).This is the main formula for finding power in single-phase electrical circuits ...

A significant part of the organization’s costs in the field of housing and communal services are electricity costs. Let's look at an example of how you can organize one of the measures to save electricity by automating lighting control in classrooms.

Modern lighting control systems allow you to create optimal conditions for the stay, the presence of people, as well as significantly save energy. A very common situation - students and teachers, having spent a lesson in the classroom, constantly forget to turn off the lights after leaving. This raises the problem - how to make sure that after the last person leaves the classroom, the light turns off itself? The aim of our work was to create a computer model of an automated lighting control system in the classroom, which saves energy. An automatic was designed ...

Air conditioners familiar to all of us remarkably create coolness on a hot day, but besides this, many modern models are also capable of heating indoor air. When choosing a model of air conditioner for a country house, it is useful to remember this, because using the air conditioner, in some regions, you can get an excellent alternative to traditional water heating. And most air conditioners offered to consumers today are already able to cope with this task with a bang.

A system equipped with a heat pump is called an inverter system, since there is the possibility of its functioning not only to create cold, but also to create heat - that is, the system is operable in two directions. Of course, such models are somewhat more expensive (for example, McQuay or Mitsubishi Electric brands), but payback in the off-season would be obvious, because the heater would require much more electricity to solve the same problems ...

As soon as the production of LEDs reached industrially significant proportions, their widespread introduction began. The use of LEDs these days is so vast that if you look around you will almost certainly catch something that has LEDs. What explains their popularity?

It's simple: the LED is a very efficient, safe, and inexpensive light source that meets many lighting needs, not inferior to either incandescent or neon lamps, and in fact, significantly surpassing them all. Where are the LEDs used, what are their areas of application? We will try to give an answer to this question here. First of all, pay attention to the fact that many LCD screens, for example, TV screens, monitors, displays of mobile phones, and various mobile gadgetshave LED backlight. This applies to both old models and the latest ...

In 2010, two Apple immigrants, Americans Matt Rogers and Tony Fadell, founded Nest Labs, and in 2011 their business was so successful that in the United States a truly new era began in the organization of home climate control. Then the European market segment was mastered. In 2014, Nest Labs was bought by the giant Google for $ 3.2 billion, which did not slow down the development of the original direction, but only accelerated it.

The first model of the Nest smart thermostat was introduced to the consumer at the end of 2011, and immediately made a splash. The following year, the second modification of the device was released, it had an updated design and expanded functionality, and it was the second model that became the key product of Nest.So, the Nest thermostat is a stylish smart gadget designed to automate and optimize all the processes in the room associated with maintaining ...