To organize outdoor and indoor lighting, especially to create a variety of local lighting of interior areas, they are increasingly resorting to the use of LED strips. LED strips are universal, compared to lamps they are inexpensive, compared to fluorescent lamps - they are very energy efficient, and besides, they are very easy to install - all this explains the growing popularity of LED strips among a wide range of consumers.

In connection with the relevance of this topic, let's talk about the parameters of LED strips, how to find out and calculate the power of the tape and what you should look for when choosing an LED strip for your needs. A typical LED strip is a kind of flexible printed circuit board with SMD LEDs mounted on it in a certain order on one side, and with conductive tracks on the back. These tapes are issued on a constant voltage 5, 12, 24 or 36 volts ...

Not always a stationary outlet is exactly at the place where you want to connect and use the appliance. Sometimes we just do not have enough wire length, for example, while working with a drill, or we decided to put the refrigerator three meters away from the wall outlet.

There is no way to do without an extension cord. For this, it was created - to allow us to use electrical appliances in places remote from stationary sockets. Needless to say, about connecting a computer, which alone requires several outlets at once. And where to get them, if not on the extension cord? The use of an electrical appliance with an extension cord can be permanent, as in the example with a computer, or temporary, as in the example with a drill. For a computer, we will need an extension cord with a multi-socket outlet, and even equipped with some kind of surge protector, if only so that with the click of a button it would be possible to immediately disconnect the monitor from the network ...

A motion sensor is most often used to turn on lighting when you walk or are near it. With it, you can save electricity and save yourself the trouble of flipping a switch. This device is also used in alarm systems to detect unwanted intrusions. In addition, they can be found on production lines, they are needed there for the automated execution of any technological tasks. Motion sensors are sometimes called occupancy sensors.

Motion sensors distinguish according to the principle of action, their work, accuracy of operation and features of use depend on this. Each of them has strengths and weaknesses. The final price of such a sensor also depends on the design and type of element used. The motion sensor can be made in one housing and in different buildings (the control unit is separate from the sensor). The easiest option for a motion sensor is to use a limit switch or a reed switch ...

Each designer secretly dreams that robots quickly, accurately and accurately make drawings, and a person receives a fabulous salary for this. Such automation is still a long way off, but it’s quite possible to alleviate your work by reducing the time spent on preparing projects and related documentation. Four useful programs and one smartphone app to help!

The SmartLine 1.9 plugin is an AutoCad palette with sample projects. An engineer drags the necessary supports to the drawing, or they are placed automatically along the line route.In addition, the program calculates intersections with engineering structures, creates lists of supports, trenches and works, as well as cable logs. Documentation can be exported to Excel and Writer, which facilitates the work of not only the designer, but also the estimator.The composition of all nodes is based on a ready-made database of drawings and typical solutions of the most popular fittings for SIP...

Philips LED lamps are considered one of the most high-quality and durable among analogues. The company itself has an excellent reputation, based on more than a century of international experience. With all the authority, on some packages of its LED lamps, the manufacturer responsibly declares that the lighting devices of this brand are able to serve reliably for more than 15 years.

At the moment, the range of Philips LED lamps is quite wide and diverse, let's look at it. There are several standard forms of Philips LED lamps, from which each consumer can choose what is right for his purpose. Technically, the lamps differ from each other by the type of cap, power, brightness, color temperature of the glow, the presence or absence of the ability to use a lamp with a dimmer. The typical Philips LED lamp energy efficiency is around 95 Lm / W ...

Everyone who in the days of the Soviet Union dealt with a soldering iron knows firsthand the rosin. However, today, when soldering fluxes are used everywhere, rosin for soldering is used less and less. But rosin is used not only for soldering. Let's remember what rosin is in general, where it comes from and where else it is used.

Rosin or colophon resin got its name from the ancient Greek city of Colophon, where a special pine resin was highly valued by musicians in its time. Rosin itself is a rather fragile amorphous substance of a vitreous structure with a characteristic glass luster. The color of the rosin can be from light yellow to dark red. As a component, rosin is found in coniferous resins, and consists mainly of the carboxylic acids of the phenanthrene series and their isomers. The raw material for the production of rosin was originally ...

Automobile speedometers have not been limited in their operation to mechanics for a long time. Today, electronic speed sensors are used to measure speed, which count electrical pulses using optoelectronic or magnetoresistive circuits. Thus, modern speed sensors are two types of sensors - optoelectronic and wireless (based on a magnetoresistive element).

The mechanical rotation is transmitted to the optoelectronic sensor from the so-called “speedometer cable” coming from the gearbox of the car, and already inside the sensor itself, using the photo-interruption unit, the cable rotation speed is converted into electrical pulses of the corresponding frequency. As for the sensor without a cable, its magnetoresistive element is simply installed in the transmission, so it does not need a cable at all. The optoelectronic sensor is driven ...

The current popularity of LED light sources used in everyday life, at manufacturing enterprises and in street lighting systems, is explained by their many advantages: efficiency, environmental friendliness, and another important property - minimal pulsations of the emitted light. Let's look at this aspect in more detail. Why is the nature of the pulsations of the light flux so important for people?

At all times of the existence of human civilization, the Sun has always remained the main source of light on earth. At night - the moon. But it was the sunlight of the eye and the human nervous system that learned to perceive more comfortably than even light from a fire, a lamp or a candle, and even more so from other specially created sources. A person’s need to lead an active and productive life in the dark, forced him to look for alternative light sources ...