At the 2018 315 party, a question about the presence of strobe in LED desk lamps sparked a lot of concern. The simplest definition of strobe is the constant fluctuation of light during the switching cycle. This fluctuation, for the human body, can cause a variety of problems. There are relevant biological and medical studies that show that strobe may cause brain cell damage.
According to some researchers, even if the strobe of light in the environment is too fast to be detected, the organism’s retina can still distinguish and respond to light with a frequency of 100-160 Hz, or even up to 200 Hz, by observing the EEG. Light at 100-120 Hz caused cell burns in cats’ brains in animal experiments, and the burned cells belonged to the lateral geniculate tissue, which plays a role in eye control.
Furthermore, the strobe may have an effect on the reading and strength. The brightness strobe of fluorescent lamps and CRT displays has been shown in studies to affect the trajectory of eye movements when reading text, and fluorescent lamp strobe is responsible for many people’s vision damage. Furthermore, experiments have revealed that the frequency of 100Hz fluorescent lamp strobe may cause the office staff headache incidence multiplier. As a result of the stroboscopic problem, a lot of stroboscopic desk lamp has become a sought-after good.
According to Jingdong data, the price of LED desk lamps ranges from a few dozen to several hundred yuan, and the main function is the eye protection function, indicating that people are now concerned about the demand for desk lamps eye protection. A few days ago, Mijia and Xiaomi ecological chain enterprise Yeelight collaboration launched a new three-dimensional light without video flash desk lamp – Mijia Desk Lamp Pro, which is also the second Mijia desk lamp product, it reaches the new national standard A illumination, through the German TUV “eye comfort” certification, and supports Mijia, Yeelight, and Apple HomeKit APP control, so it is a new product.
Apple HomeKit APP control, so how does its performance, whether it will also appear strobe? Today I answer each one individually.
Different from the first generation of Mijia LED desk lamp, Mijia Desk Lamp Pro adopts three levels of pivot adjustment: the lamp head pivot can meet the up and down rotation angle of 45 °, the lamp arm pivot can meet the forward tilt 30 °, back tilt 40 °, and the base pivot can meet the forward tilt 19 °, back tilt 15 °, left and right rotation 30 °, bringing more flexible practicality.
Mijia Desk Lamp Pro head is extremely thin, round light-emitting, with a diameter of about 116mm, a side-lighting structure, a luminous flux of 700lm, 12.5W rated power, 64 built-in 0.14W LED modules, an irradiated area of up to 1.25m in diameter, and a new national standard of Class A illumination. In April 2018, the National Standards Committee implemented a new national standard, namely GB/T 9473 According to the new national standard, the illuminance and illuminance uniformity of lamps and lanterns in the central and edge areas for reading and writing operations should be at least A, preferably AA. The illuminance requirement of Class A is at least 300lx in the central area and 150lx at the edges, and the illuminance requirement of Class AA is at least 500lx in the central area and 250lx at the edges, whereas Mijia Desk Lamp Pro meets the new national standard of Class A illuminance, which means its central area illuminance is at least 300lx and the effective illumination area is up to 1.2m, allowing it to illuminate the desk more widely It can cast a wider and brighter light on the desk.
Among them, to mention a key feature of a good or bad table lamp – anti-glare. Many people’s businesses will be marked in the publicity “anti-glare,” in fact, anti-glare refers to the light is not harsh, but also an important indicator to evaluate the performance of the lamp, as the light source itself, the higher the brightness, the more obvious glare; the closer the location of the light source from the line of sight, the more obvious glare. The Mijia lamp Pro employs a novel side light structure in which light is fully refracted and reflected in the ultra-thin lamp head before being diffused through the light-emitting surface to be more uniform and transparent, effectively reducing glare. During the testing, we discovered that the Mijia Desk Lamp Pro does not have a strobe problem.