The life of the modern world is moving forward at a rapid pace. Sometimes a person does not have time to keep track of all the trends of a technological breakthrough. In the constant pursuit of the bliss of this vain world, we simply miss the events that could affect our lives for the better. We all strive for high prices, forgetting that in some cases you can save a lot by buying a seemingly simple thing, but advanced in terms of technology. This is the case with battery-powered LED lamps, which will be discussed later.
History of LED lamps
The history of LED lamps began its report back in the last century, when the first semiconductor devices were invented, namely: diodes, transistors and other devices. If anyone does not know, then a semiconductor device is two crystals connected together that have differentconductivity of electric current. Back in 1923, during the revolution in our country, the famous physicist Losev first noticed the glow of semiconductors.
However, the appearance of the first real LED was still far away. And only 50 years later, it was possible to invent LEDs that shone in different colors. But at that time, such devices were still very expensive, and in 1990, a Japanese inventor named Suji Nakamura managed to significantly reduce the cost of the entire process of manufacturing LED lamps. So LEDs have firmly entered our lives.
Working principle and device
All LEDs work using the same principle. The crystal from which they are made is placed on the base, and a direct current is applied to its terminals. It, in turn, is converted from a variable thanks to a rectifier, which, together with the LED, is mounted on the board. Depending on the power of the lamp, the number of LEDs on the board may be different.
When the entire board is assembled, then it, together with the ballast, is placed in a flask with a base. This is how most LED lamps are made.
Varieties of lamps
Currently, LED lamps are widely used in society. Due to the different sizes of the plinths used, the range of their use is very wide: from household use to street lighting and advertising. Also in wearable versions, they are used in various flashlights, and thanks to the presence of a battery, LEDlanterns have won great love from cyclists.
But not only cyclists are happy with this invention, housewives also appreciated this innovation. Due to their compact size, quick installation, durability, these devices are gaining more and more prestige. Battery-powered LED lamps are also used in the kitchen. Many of them are equipped with vacuum suction cups and magnets, so that they can be fixed even in the most inaccessible places: above the stove, above the sink or placed in the kitchen cabinet.
For those who spend evenings at the computer, a battery-powered LED table lamp may come in handy. Depending on the version, it can either be simply installed on a table or attached to a monitor. It gives little light and will not disturb others while you work. Such lamps are very economical, and the power of such lamps can be taken directly from the USB port of the system unit or laptop, or the built-in battery is used.
Advantages and disadvantages
Like all other household appliances, battery-powered LED lamps have their advantages and disadvantages. The disadvantages include their high cost. Yes, now the market is filled with cheap Chinese lanterns, but they are several times inferior in quality and durability. This means that in order to purchase a really high-quality product, you need to shell out a good amount.
Another disadvantage of such lamps is the low battery life. Any batteries aretheir service life, after which they will have to be changed. In addition, as it was written above, there are a lot of cheap fakes. It may happen that after buying new batteries, they will last only a couple of days. LED lamps are not suitable for all rooms. They hate heat, and therefore they are not suitable for baths and saunas.
The advantages of battery-powered LED lamps include their durability. The average life of LED lamps can be 5-7 years. This is a lot. The service life of a conventional incandescent lamp with constant use is only a couple of months. Another advantage that can be named is the breadth of application. Together with built-in motion sensors, they can be used as battery-powered LED lamps for cottages and utility rooms. Even in the gazebo you can install such a lamp, and it will please the eye for many years.
Selection Tips
Choosing the right LED lamp is also an art. What sellers in stores offer may not always be suitable. First of all, you need to decide on the method of attachment. They are: ceiling, wall, hanging, table, floor. It is clear that a ceiling-mounted luminaire cannot be wall-mounted. Although there are lamps with a universal mount that can be installed on walls and ceilings.
The second thing you need to pay attention to is the power of the lamp. Although battery-powered LED lamps do not consume much energy, it is worth knowing that the more powerful the lamp, the more oftenyou will have to change the batteries in it. Therefore, you do not need to buy a powerful lamp for use in a kitchen cabinet, for example.
Conclusion
Battery-powered LED lamps are a really profitable solution for cottages, arbors, garages and other utility rooms. Wherever there is no wiring and no fixed lighting, these small and effective helpers can come in handy. But in the end, I want to warn you: beware of fakes! In order for LED lamps to serve for a long time, you need to buy them only from trusted sellers and always with a guarantee. It will protect you from wasted spending.
