Table lamps are usually used to facilitate reading. There are generally three types of lamps for writing desk lamps: incandescent lamps, tungsten halogen lamps, and fluorescent lamps. Three types of light sources have their own advantages and disadvantages. Different people may prefer the light color and brightness of different light sources. In order to be able to project most of the light onto the table, the light source of the writing desk lamp is usually mounted horizontally or downwardly.

In our daily life, learning and work, the most exposed light is the fluorescent light source. Is this light source beneficial to our health?

The fluorescent principle of fluorescent lamps is to increase the daily frequency of fifty-five Hz alternating current to thousands or even tens of thousands of Hertz frequency through variable-frequency electronic ballasts, excite low-pressure mercury vapor in fluorescent tubes to generate ultraviolet rays, and then generate ultraviolet rays to excite phosphors. The working principle of light. In the process of its luminescence, it will be accompanied by a large amount of electromagnetic radiation, ultraviolet rays, high-frequency flash light and glare with uneven brightness distribution. If it is used improperly, it will also produce mercury pollution. Learning and work in such a light source environment will inevitably cause Many diseases and symptoms such as decreased vision, dizziness, skin diseases, memory, and decreased immunity. It can be seen that using a fluorescent lamp as a light source is not an ideal choice.

Experts believe that both daylight and nighttime, the need to reasonably select the light source, lighting and lighting under the premise of the unit area illumination intensity, light uniformity, comfort to accurately grasp. Too strong and too weak illuminance are light pollution, so choosing a healthy, energy-saving and environmentally friendly light source is crucial!

Here are some common eye protection desk lamps for different prices:

Huishi Technology Smart Lights

Using SEE technology and its safety, environmental protection and energy-saving DC fluorescent lamp device, combining SEE technology and LED new light source solves problems such as LED color temperature, color rendering, illumination, heat dissipation and ghosting (commonly known as ghosting), and is more environmentally friendly and energy-saving.

Price: 82-138 yuan <br> <br> small guard no radiation soft eye study lamp

The Guardian raised the “lighting” and “green lighting” to a new height of “healthy lighting”. There is no harm to the electromagnetic radiation of ordinary eye protection lamps, and it is the only product that can do without electromagnetic radiation even on the power cord. The use of pure trichromatic fluorescent tubes, and soft light design, is particularly suitable for young people. Simulating natural light technology, the eyes do not feel glare, and no dry eyes appear after use.

Price: 476-688 yuan <br> <br> should be born view no flash lamp Shu

It is an innovative technology product jointly developed by Yisheng Technology and Beijing University Habitat Environmental Center. It adopts new fourth-generation LED lighting technology to simulate natural light at 9 and 10 o'clock around the clock to create a fresh, soft, comfortable and natural environment. Learn lighting space. Compared to ordinary eye-protection lights, “Shu Light” will not generate strong electromagnetic radiation due to extremely high frequency strobe light, thus eliminating strobe, radiation and glare, and effectively eliminating ultraviolet rays and infrared rays from traditional light sources. s damage. The original 120 lamp beads are evenly distributed and the ring matrix light source. Ordinary eye protection lamp, a single light source is easy to produce shadows; and 120 high-quality LED light beads evenly distributed, naturally showing no blind area, no shadow, adequate and uniform learning lighting space, effectively help the environment visual fatigue, comfortable and safe.

Reference price: 1280-1560 yuan