The difference between eye protection lamp and led lamp
Different characteristics
Characteristics of eye protection desk lamp:
(1) White light similar to natural light, with stable brightness, no flicker and no eye fatigue.
(2) The luminous area is large, and it is not easy to produce glare and large-area shadows that are harmful to vision.
(3) Instant bright spot, quiet and silent after lighting.
(4) Compared with ordinary incandescent lamps, it saves electricity by 80%, and the average life of the lamp tube can reach more than 6,000 hours.
Features of LED lamp:
First, the lamp body is very small.
LED lamp is a very small and fine LED chip encapsulated by transparent epoxy resin, so it is very small and light, which can save a lot of materials and space in production and application.
Second, energy consumption is very low.
Generally, the working voltage of LED lamps is only 2~3.6V, and the working current is only 0.02~0.03A, that is to say, it does not exceed 0. 1W, which is more than 90% less than incandescent lamps with the same light efficiency and more than 70% less than energy-saving lamps. Therefore, only LED can be called a real energy-saving light source!
Third, it is strong and durable.
The LED chip is completely encapsulated in epoxy resin. Small particles of epoxy resin are extremely difficult to break, and there is no loose part in the whole lamp body; The chip inside is extremely difficult to break, the thermal effect is very small, and it may evaporate and fuse. These characteristics make LED not easy to be damaged. Compared with ordinary light bulbs and fluorescent lamps, LED is impregnable and durable countless times.
Fourth, the LED lamp has a long service life.
Under proper current and voltage, the service life of LED lamps can reach 6,543.8+10,000 hours, that is, in theory, the service life of products can reach more than 654.38+ 00 years, which is longer than other types of lamps.
Verb (abbreviation for verb) Safe low voltage.
LED lamps use low-voltage DC power supply (which can rectify alternating current into direct current), and the power supply voltage is between 6 and 6~24V, which varies with different products. In a word, it uses a safer DC power supply than a high-voltage power supply, which is especially suitable for home and public places.
Sixth, the scope of application is wide.
Because of its small size, each unit LED die is 3~5mm square or round, which is more suitable for preparing devices with complicated molding process. For example, the manufacture of soft and flexible tubes, light strips and special-shaped snuff is currently only applicable to LED.
Seven, more colorful
In the past, the lamps and lanterns on the market were all single in color. In order to achieve the purpose of color, one is to paint or cover the surface of lamps, and the other is to fill inert gas into lamps to emit light, so the richness of color is limited. LED is digitally controlled. At present, light-emitting chips can emit a variety of colors, including red, green and blue. It is with these three colors that the colorful world can be restored through system control.
Eight, less heat dissipation
LED is a more advanced cold light source, which doesn't radiate a lot of infrared rays and ultraviolet rays like incandescent lamps and fluorescent lamps, and is especially suitable for the lighting of valuables such as cultural relics, jewelry and high-grade cosmetics. There is almost no current thermal effect like incandescent lamp, and it will not be affected by thermal expansion and contraction. Will not make the bulb yellow, accelerate the aging of lamps and lanterns, and will not have a greenhouse effect on the surrounding environment.
How to choose led desk lamp
Look at the chip
Chip is the core luminous element of LED lamp, and the luminous efficiency and color rendering index of different brands and models of lamp beads are different. At present, most lamps on the market are single crystal chips, and integrated chips are also called COB chips, which have better performance than single crystal chips. Therefore, try to choose COB chip when purchasing, which not only has long service life, but also has high luminous efficiency and color rendering index and is widely used.
Second, look at the color temperature
Different lighting places, such as bedrooms, living rooms, kitchens and bathrooms, have different requirements for lighting. At this time, you can look at the color temperature of Led lights to choose. The color temperature range of LED lamps is 2700~6500K K. The smaller the value, the more yellow, and the less blue and white. The most suitable color temperature range of LED lighting should be close to the natural white light of the sun, which is the most scientific choice. In daily household lighting, you can choose 2700K incandescent lamp color or 5000K neutral white; Besides, the whiter the light, the better. Light with high color temperature is close to the dazzling sunshine at noon, which is too irritating to the eyes, while light with low color temperature is easy to get tired. Only a lamp with comfortable color temperature is a healthy lamp.
Third, look at the luminous flux
Luminous flux generally refers to brightness. Different environments and different areas need different brightness. Under the same number of terraces, the number of bulbs used is different according to different environments. When buying, you can consult the shopping guide according to your own space needs. When choosing lamps and lanterns, we should combine the lighting environment, refer to the luminous flux index of products, or pay attention to the brightness of light, and try to choose lamps and lanterns with sufficient brightness but not dazzling.