LED lamps are widely used not only as signal elements or interior decoration, but also as lighting devices. They are the most energy efficient light sources to date.
These lamps have wider characteristicsthan traditional lighting fixtures. Thanks to energy-saving technologies, LED lamps significantly save energy in the room. Thus, an LED lamp with a power of 10 W is comparable to a conventional incandescent lamp with a power of 75 W and has a much longer period of operation.
- 1 LED benefits
- 2 Main characteristics
- 3 Colour temperature
LED devices ecologically safeThey do not contain harmful substances in the form of mercury or lead. Unlike fluorescent, metal halide and gas discharge lamp types, they do not form fluctuations of the luminous flux and harmful radiation, which adversely affect the human eye.
Their main disadvantage is a rather high price. However, over time, these lamps can pay off, as the life of a quality lamp from well-known companies reaches up to three years. In addition, manufacturers constantly modify their products and in the near future its cost will decrease by 20-30%.
The basis of the lamp are several LEDs consisting of a semiconductor crystal. With the passage of current through the crystal and the glow occurs. Number of LEDs may be from one to several dozen, depending on the design and power of the lamp.
LED lamps are mainly divided by the following specifications:
- by type of cap
- instrument power
- glow temperature
- operating voltage (from 12 W to 220 W)
When purchasing lighting equipment, it is necessary to pay attention to the type of base, which must match the lamp.
Consider and direction of light device. For wall or table lamps suitable narrow beam of light, whereas in the chandelier you need a lamp with a uniform distribution of light.
When choosing, you need to be guided by such factors as the power source and the number of LEDs. A large number of LEDs indicates that they do not have significant power, as well as the absence of a radiator in the lamp, which reduces the heat capacity of the device.
Therefore, you should not buy LED lamps in the form of "corn", which has several dozen LEDs, as they have a low quality. In addition, if the lamp has poor quality Power Supplythen with periodic power surges, it quickly fails.
One of the main differences between the LED lamp and the incandescent lamp is wide color range emitted light beam. Indicator color temperature is of paramount importance when choosing lighting equipment.
The hue of LED devices is determined by the Kelvin color temperature scale (K), the values of which correspond to the color of the heated metal.
For lighting fixtures determine Three main shades:
- warm white (2700-3500 K)
- neutral white (3500-5000 K)
- cold white (5000-7000 K)
The color temperature of the LED lamp has a certain effect on the well-being of the person in the room. Each of the shades of the light beam of the human eye perceives differently, so even the difference of 500 K becomes noticeable. For different lighting conditions, sources of a certain temperature are used.
LED lights usually used in industrial premises, offices and apartments. They often find application as a design element, as well as a backlight for advertising and shop windows. Since these devices have little heat, they are used in plastic products in the form of embedded light sources.
Depending on the application, a specific color temperature of the LED lamps is used. The most comfortable is considered a warm white color, creating an atmosphere of comfort. It is closer to the color temperature of an incandescent lamp (2800 K). LED lamps with such a shade is better to use for lighting in the bedroom and living room.
A cool white shade that approaches natural lighting is best suited for the workplace. It can be used in the kitchen, bathroom or basement.
The color temperature of light sources has a significant impact on the perception of colors in the interior, which must be taken into account when designing industrial premises. For example, in furniture stores, a warm light is better suited. in the range of 2500-3500 K. For premises where they sell fabrics, curtains or wallpaper - the color temperature should be higher (from 5000 K), a cool white shade for better illumination of objects.
When choosing LED lamps for interior lighting and advertising lighting, the color temperature is taken into account along with a number of technical characteristics of the devices. The optimal color shade is inextricably linked with the brightness of the glow and the power of the lighting technology.