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If the air quality in the running area is poor, it is recommended to wear a sports warm mask. In addition, winter is also a popular season for the upper respiratory tract.

How to use solar panels correctly, we want to understand from the basic, first to understand the definition of solar panels, second to understand the composition of solar panels, and again to understand the rules of the use of solar panels.

A solar panel battery is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Thin-film solar cells that work on the photoelectric effect are the mainstream, and how to choose and buy solar cells puzzles some people. Today, I w......

The main problem is that the time is short during the day. Make it backlight. And there is a special plant growth light for this. They are also called Grow Light, agricultural lights (agricultural planting lights). There are enough names, but the essence is the same-they are light sources that make ......

The LED Grow Light can be freely adjusted, rich in spectrum, which greatly meets the growth needs of different plants at different stages.

LED Grow Light has advantages of other electrical light sources: energy saving, cold light source, long service life, small size, light quality, high light efficiency, rich wavelength type, spectral energy is easy to composite, easy to modulate, adjustable, can be irradiated closely Plants can use m......