The spring promotion since the beginning of the school has made many new IT products sing the protagonist in the market. In addition to the latest processors and graphics cards, the new high-end LED display of ViewSonic has satisfied the needs of students. . During the school promotion period, not only did IT products receive widespread attention, but even LED eye-protection lamps received more attention. The purchase of ViewSonic's new large-screen LED display to send the value of 199 yuan LED eye protection led to the consumer's discussion on the purchase of LED eye protection, and now there are many kinds of LED eye protection lamps on the market, the price is different, the quality is also If you are not good or bad, how can you pick up LED eye protection lamps that meet the energy-saving standards and quality? The following gives some introductions and purchases of LED eye protection lamps, hoping to give readers and users a basic understanding.
LED eye protection lamp has the advantages of no UV, no infrared, no glare, no stroboscopic, no electromagnetic radiation, and low energy consumption, high illumination, soft light, and uniform illumination. A good LED eye protection has no damage to the eyes, and the closer to the natural light, the better the lighting characteristics.
The biggest advantage of LED eye protection is energy saving. The DC power supply effectively eliminates the extra electromagnetic loss and further reduces the overall energy consumption. The power consumption of the whole machine is preferably 7~10W, and the lower the better.
Thanks to the use of a better source of illumination, LED eye protection lamps have an extremely long service life. The theoretical life of semiconductor light sources is as high as 100,000 to 200,000 hours. It is more than 100 times of the ordinary light bulb, and the actual service life is more than 20,000 hours. If it is used for 5 hours per day, it can be used for 4,000 days, saving users a lot of power and lighting purchase costs.
LED eye protection lamp is the most environmentally friendly lamp at present. Its semiconductor light source does not have tungsten wire in incandescent lamp, nor does it have mercury DC power supply in fluorescent lamp and energy saving lamp, which eliminates electromagnetic radiation pollution of high frequency alternating current and no poison/heavy metal. Damage to the body.
Compared with the production process of ordinary lamps, LED eye-protection lamps are more advanced, because the semiconductor light-emitting source adopts the same production process as the computer chip, and the main component is silicon, which is the safest and most abundant element on the earth.
The security of use. LED eye-protection lamps are usually powered by 12V low-voltage DC. There are no glass parts that are easily broken by fluorescent lamps and ordinary bulbs. There is no risk of bursting and it is safe to use. The power supply voltage of the LED eye protection lamp is much smaller than 36V, and the power supply less than 36V is safe for the human body.
The reason why the LED eye protection lamp can maintain eye health is because the advantages of the LED light-emitting material itself are no stroboscopic, glare-free, and no ultraviolet radiation. Moreover, the LED illumination source has better controllability for color temperature, and the paper and the screen text and pattern have higher contrast. Too low a color temperature will make the book yellow, it is not easy to distinguish the text, and it is easy to produce eye fatigue; and too high color temperature will lead to a decrease in contrast, which is easy to feel dazzling and dizzy.
At present, the main application group of LED eye-protection lamps is first of all adolescent students. Undoubtedly, the health characteristics of LED eye-protection lamps help to protect young people's vision. Secondly, it is an auxiliary light source in the adult personal environment. For example, in a small space that is not willing to disturb others, the LED eye-protection lamp can meet the needs of independent lighting, or exist as an auxiliary light source for laptops and desktops, and increase local illumination. Comfort.
According to the relevant survey results, the incidence of myopia in primary school students was 22.78%, and that of middle school students was 55.22%, including 70.34% for high school students and 76.74% for college students. The use of LED eye protection has become a consensus on health protection. The reference standard for the purchase of LED eye protection lamps is given below.
1. Appearance quality. The ideal reading source should be close to natural light, no stroboscopic, dimmable brightness 4 to 6 files and uniform illumination. In addition, the product permit, quality inspection number and other documents must be complete.
2. Color temperature value. The color temperature value of the lamp's illumination determines the softness of the light. Too high and too low are not very good. 4000K to 5200K is suitable. Among them, the eye light of 4000K to 4500K is slightly redder and softer, suitable for primary school students; and the color temperature value of 4500K to 5200K is suitable for middle school students and above.
3. After sales service. Today, with the new light source technology becoming more and more advanced, the use and maintenance methods of eye protection lamps are particularly important. Therefore, when purchasing, it is preferred to purchase well-known brands and products of more than 100 yuan. At the point of purchase, the manufacturer's personnel will demonstrate and explain on the spot until the consumer grasps and understands the usage, and the well-known brands have sufficient spare parts, such as lamps, to ensure that they are needed.
Friendly reminder, because the current market development of LED eye protection lamps has just begun, the promotion of low-voltage DC lighting technology is not very strong, so for consumers, the purchase must be cautious. Buy a real eye-protection lamp, you must not rely on a concept or for the sake of cheap, spend money and can not achieve results.
Edit: Leo
- Perfect for all vehicles that use a standard US EU license plate,the angle of camera can be adjusted 45 degrees by loose screw.
- [Equipped with 4 6 8 Night Vision Infrared LEDs optional]extends visibility in low light condition, ensuring complete safety even at full darkness.
- [100% Waterproof & Low power consumption]Waterproof IP68 Rating and Consume less than 40 mA.Ensure it have a long time service life.
- [ The total length of the wire is 32 ft] It is perfect for most cars and SUV RV PICKUP,Easy to install
-
[Reliable & Friendly Customer Service] Ready to respond within a 24 hour time frame. 30-Day Money Back Guarantee, 12 Month Replacement Warranty and Lifetime Support Guarantee
License Plate Reverse Camera,License Frame Backup Camera,Wired License Frame Backup Camera,Led License Frame Backup Camera
Shenzhen Sunveytech Co.,LTD , http://www.sunveytech.com