Battery-powered luminaires are electrical appliances powered by batteries, rechargeable batteries and solar panels. Most often they use LED elements in connection with their low power consumption. The use of incandescent lamps is considered irrelevant due to the need for frequent replacement of batteries. This article is a short review of such devices.
Battery-powered LED lights are a special type of lighting technology. According to the advertisement, they “completely” do not consume electrical energy. Of course, here you need to make an adjustment for the marketing ploy, however, these devices and in fact, a little consume current. So, LED battery-powered luminaires need only three AAA-sized batteries with a supply voltage of 1.5 V. Installation of such devices is simple and original - they are mounted using double-sided tape. In order for our self-contained battery-powered lamp to light up, you need to press it with your finger.
Such elements are used to create decorative interiors or as nightlights. The main advantage of such devices is simplicity, reliability, durability, and most importantly, there is no need for pulling cables. They are characterized by a fairly high level of brightness (not inferior to incandescent lamps), do not flicker and do not blink, like economical lamps, do not emit ultraviolet light. In the event of a power outage, battery- powered diode lights continue to work and illuminate your home or yard.
Such devices have an interesting design, they can be used as emergency or auxiliary lighting.
The next type of lighting devices that do not need power supply are
emergency lighting fixtures. In such cells, batteries and batteries act as a power source. Such light sources are ignited only when the power supply to the room is interrupted (interruptions in the power supply network or wiring). Battery operated emergency lights can be either portable or stationary. As a rule, these elements can work both from a network, and from batteries. They are usually installed in public places to indicate the direction of exit. Installation is carried out on ceilings, walls or even on the floor. Floor usually have larger sizes than the rest.
The third type of self-contained luminaires are solar cells. Often they are installed in gardens, parks, on the streets, in country lanterns - wherever it is quite difficult to route wires to connect to electricity networks. The advantage of such devices is ease of installation and long service life. Structurally, such a lamp contains an LED emitting element, a solar battery and a battery for storing the accumulated electricity. It is necessary to install them in open spaces, so as not to block the device from sunlight. Such a device is ignited automatically at dusk.
In conclusion, we say that autonomous lighting sources are simply indispensable in homes where there is no electricity, in nature, in garages and other utility rooms.