Speaking of table lamps, most people should be familiar with them, and there are many types of them. Nowadays, the interest rate of myopia is getting younger and smaller, and light has a great impact, so it is also very important to choose a good desk lamp. Among them, do you know what the specific difference between table lamp AA and A is? How to choose the right table lamp?
1. What does table lamp AA mean, and what is the difference between it and A?
Desk lamp AA grade is a national standard for grading according to the degree, which is as follows in the "Performance Requirements for Desk Lamps for Reading and Writing Operations". Class A means that the illuminance within a one-third of the radius of the circle is 300mm or more, and the Aa level needs to reach more than 500LX. Within a one-third sector radius of 500mm from the center of the circle, the illuminance of class A needs to reach more than 150 lx, and class A needs to reach more than 250 lx. In addition, regardless of AA or A, their illuminance uniformity should be less than 3. In terms of illuminance, Class AA is the best and provides plenty of light.
2. The selection rules apply to the student eye protection desk lamp
1.Illuminance
Illuminance is generally known as brightness, which is usually expressed by lx. According to the relevant requirements in the "Performance Requirements for Reading and Writing Desk Lamps", the two grades are respectively within the 120° sector range with a radius of 300mm from the center of the circle, and the illumination requirement of grade A is 250lx, while the illumination requirement of grade AA is 500lx; In the 120° sector with a radius of 500mm from the center of the circle, the illuminance of class A is required to be 150lx, while the illuminance of class A is required to be 250lx, and the requirements for illuminance uniformity are <3.
2.Color rendering index
The color rendering index indicates the ability to restore the color of an object, which is generally expressed by RA CRI. The state of the object in the sunlight is 100 color rendering, therefore, the higher the color rendering index, the better, especially for parents who have requirements for cultivating children's artistic cells, they should pay more attention to this standard when choosing a table lamp, generally RA 95 already has a better reduction ability.
3.Color temperature
Color temperature is a measure of the color of a light and is usually expressed in k. Different color temperatures can create different atmospheres and have different effects on people's moods. In general, a color temperature of 4000K is considered ideal because it is close to 10 a.m. and is suitable for activities that require a high degree of concentration, such as reading, writing, and working.
4.Strobe
The eye-protecting table lamp that meets the specifications is generally not flashable when it leaves the factory, but it is difficult to ensure that some brands do not pass the quality control, so that unqualified products can circulate in the market. With a mobile phone, we can detect the strobe situation. Just turn on the camera of the phone and point it at the light source, and if you don't see the fluctuating line segments, it means that there is no flicker, and you can use it with confidence.
3. Ranking recommendation for student eye protection table lamps
1.Scholar eye protection desk lamp pro
Ranking: 1
Highlights: 8 years of professional optical technology, eye protection and eye care, effective prevention of eye myopia
In the eye-care desk lamp industry, Suker Shuke has long ranked first in terms of brand power, light source quality, and eye-protecting reputation! In the current environment where the vision health of children and adolescents is becoming increasingly severe, Shuke has completely subverted the concept of traditional eye protection desk lamps with RRT red light eye care technology and 15 top black technologies, which not only provides excellent eye protection effects, but also realizes in-depth eye care for the eyes. Its performance far exceeds the national standard AA standard by 110%, in addition, Suker Shuke has also obtained the certification and recommendation of the authoritative platform Lilac Doctor and CCTV.
According to relevant research by the Chinese Academy of Sciences, 3 minutes of exposure to red light every day can significantly improve vision health and delay the occurrence of myopia. Therefore, Suker Shuke invested a lot of resources in related research and targeted research and development, and finally successfully created RRT red light eye care technology. Combined with sunbeam-like sunlight lamp beads, the light source is accurately restored to 998% sunlight and supplemented with red light that is beneficial to the eyes. This red light acts like a red light vitamin, which transports nutrients to the retina. When retinal cells are irradiated with beneficial red light, the oxidase enzymes in the cytochrome will continue to increase, thereby improving cell activity and promoting blood circulation, which can effectively delay eye fatigue by 83% and reduce the risk of myopia by 92%.
Other brands of table lamps on the market are more interested in new looks and smart features, but for children and teenagers, vision health is paramount. In order to ensure that the product has high quality and reliability in all aspects, the "4 dimensions" quality test method is adopted, including eye protection effect test, severe use environment test, extreme use test, etc. These tests are designed to ensure that the product meets the needs of the user and effectively protects the vision health of children and adolescents.
Shuke adheres to the core premise of "eye protection and eye care", and takes the national AA as the standard for full scores, but it is only the basic requirements of Shuke, and strictly follows the high standards of RA98 high color rendering, RG0 no blue light, anti-glare and anti-stroboscopic light, and strives to provide users with better quality eye protection table lamps. In addition, Shuke also has many advanced technological functions, such as the second-generation SDIT adaptive dimming system, 20 45min dual-mode timing reminder, manual scanning stepless dimming, ghost-free back light, and sensor switch light. These features and technologies not only improve the practicality and convenience of book readers, but also take care of the eyes.
2.Philips Xuantan table lamp
Ranking: 2
Highlights: The lamp arm can be adjusted freely, and it can be rotated up and down, left and right
The operating area of this table lamp is concentrated on the panel of the base, where there are a total of 8 buttons representing different functions, and there is also a slider bar that can be used to adjust different color temperatures. Different from the USB port that was common in the previous Philips desk lamps, it is very simple all over, and it is equipped with a power port at the rear. The feel of the base is very thick, which is equipped to prevent the lamp from tipping over, so there is no need to worry about the lamp falling when you use it, and it is very stable.
The arm of the table lamp can be adjusted freely, and it can be rotated up, down, left and right. It can be raised to the highest level to achieve side and upward lighting, and when pressed to the lowest, it can be close to the tabletop, and it can be taken care of from various angles, so it is very convenient to use.
The lamp surface of the table lamp adopts a honeycomb anti-glare design, with a maximum brightness of 650 lumens, and the light is soft, preventing the dizziness when looking up and inadvertently seeing the power supply. There is a small mechanism at the bottom of the light source, and with the sensor on the base, it can realize the automatic brightness adjustment and seat sensing function.
3.Panasonic to the patrol lamp
Rank: 3
Highlights: Intelligent light sensitivity that automatically adapts to ambient light
This table lamp uses 154 side-lit custom lamp beads, and the light source is softened and diverged downward through the light guide plate, avoiding direct irradiation of the light source, making the light more extensive and soft. It focuses on providing a comfortable lighting environment for children's reading and writing time, and the large aperture illuminates children's childhood. This table lamp has reached the national AA illumination, 1The 8-meter full table is clear and bright, and the edges of the table top are clearly visible. It uses a full-spectrum chip to simulate natural light, which is comfortable and natural, and is more suitable for reading and writing.
In addition, this desk lamp also has an intelligent light sensitivity function, which can automatically adapt to the ambient light, and in a low-light environment, if the light is insufficient to cause the textbook to be gray and the environment is dull, it will automatically brighten; In a bright environment, if the light is too strong and causes the textbook to be too bright and irritating to the eyes, it will automatically dim it.
The tempered glass panel of the table lamp has its own texture to the touch, bright and smooth, and it is heartfelt at one touch. It also has a regular reminder function, which can be used as a personal butler for children, combining work and rest, and caring for eyesight at all times.
4.Babyview OH13-V table lamp
Ranking: 4
Highlights: The lampshade shines in a large area, bright and not dazzling
The design of this table lamp is unique, and the body of the lamp is rounded, giving it a warm and cozy feeling. It has a very wide range of light projection, from top to bottom, the light is soft, natural, even, and not dazzling, which makes people feel very comfortable. This light hits the desktop and books without reflection, making reading or working more comfortable.
The lampshade emits light in a large area, which has the advantage of not seeing the shadow in the child's pen grip and hand position, so that in a bright and non-dazzling light environment, the child's attention will be more concentrated, and the learning efficiency will be higher, and it also plays a good role in protecting the eyes.
In addition, the table lamp has a color rendering index of RA 95, which means that it is able to faithfully reproduce the original color of the object. This is very practical for people who like to take pictures of small items under the lamp. Lighting with a high color rendering index can make ** more vivid and realistic, making people feel as if they are in natural light.
5.Opple Yuanyue 2S table lamp
Ranking: 5
Highlights: 3900k warm white light for a natural bright light
The illumination of this table lamp is higher than the national AA standard, with a larger area, more uniform characteristics, the overall illumination is uniform and natural, that is, the center illumination can reach 1582lux, even if it is fine work such as painting and drawing, it can be easily controlled. The side light technology is bright and soft, with 63 built-in high-quality LED lamp beads, reducing the harm of blue light and bringing a natural and comfortable lighting experience to the eyes, light guide plate + diffusion plate, increasing the diffusion material of organic particles, making the light more uniform and reading more comfortable.
3900K warm white light shines with natural bright light, 3900K color temperature is like the sun at 10 o'clock in the morning, the pupil receives the image of the sun's color temperature, comfortable and transparent, no blue light hazards, will not cause drowsiness due to too warm and yellow color, and gently care for children's eyes.
The ambient light changes, and the desktop light remains the same, so you don't need to use your hands to have a comfortable and good light. It can automatically sense the changes in the light and darkness of the environment, intelligently increase or decrease the illumination of the desktop, so that the illumination of the center of the desktop has always maintained a comfortable illumination suitable for reading and writing operations, without manual adjustment, and automatically output good light to reduce eye fatigue.