The main disadvantages of LED eye protection desk lamp are as follows:
(1) The quality is uneven, the entry threshold of LED industry is low, and the quality of various LED chips is very different, which is indistinguishable by ordinary consumers and the market is chaotic.
(2) In the early days, LED lighting was mainly used for large-scale landscape lighting, which was not suitable for high-eye environment. Now it is mainly based on experiments.
(3) Blue light is strong and harmful to eyes.
(4) Monochromatic light source, the color spectrum is too narrow, which will have an impact on the optic nerve of the eyes and is easy to fatigue.
(5) Small (5)LED lamp beads will slowly wear out after several years of use and cannot be replaced, which will easily lead to the scrapping of the whole desk lamp.
(6) The color temperature is basically above 5000K, and it is pure white, bright and dazzling.
(7) LED eye protection lamps with poor workmanship will produce slight stroboscopic and radiation.
(8) Generally, the life of the adapter is shorter than that of the LED bulb, and the transformer is easier.
The main advantages of LED eye protection desk lamp are as follows:
(1) Environmental protection: no pollution, no ultraviolet, infrared and thermal radiation;
(2) Low energy consumption design, the power consumption is only one degree after 150 hours, and the smaller the desk lamp power, the better. The light source made by semiconductor technology has high photoelectric conversion efficiency, so that the electric energy you provide can be converted into light to the maximum extent. DC power supply effectively eliminates the extra electromagnetic loss, further reduces the overall energy consumption, and makes the power of the whole machine less than 7.5w
(3) Long-life light source, without changing the light bulb for 10 years, which is 100 times that of ordinary light bulbs.
(4) The luminous source does not contain toxic heavy metals such as tungsten and mercury. Semiconductor light sources do not have tungsten filament of incandescent lamp, mercury of fluorescent lamp and energy-saving lamp.
(5) Safe 12V low-voltage DC power supply; There are no easily broken glass parts to ensure the safety of users. 36V is the lowest voltage that human body can feel, and the power supply below 36V is safe for human body. You don't even need 3C certification. The direct current power supply eliminates the electromagnetic radiation pollution of high frequency alternating current.
How many watts is suitable for LED desk lamp?
If it is a desk lamp, 10 to 13 watts is enough. Our fluorescent lamp is 40 watts, which is used as the light source of the whole room.