Plant growth lamp related knowledge

As the saying goes, "everything grows by the sun" has no life without sunshine. The normal growth and development of flowering and flowering results are all achieved through photosynthesis, photomorphogenesis, and photoperiod regulation. Therefore, fluorescent lamps that promote plant growth are developed based on the selective absorption of spectral wavelengths by plant growth and development. After using this product, the emission spectrum is matched with the selected absorption spectrum of the plant to achieve the best effect on the crop light, while other light sources such as fluorescent lamps, incandescent lamps, high pressure sodium lamps, etc. are designed for the visual effect of the human eye. The lighting source is suitable for human lighting. A large number of experiments and tests have proved that the sensitive area of ​​the human eye to the light color is essentially different from the selected area of ​​the plant for the light color. For example, the human eye is most sensitive to green light, and the plant does not absorb green light, so it will be suitable for human illumination sources, for crop fill light, and the light efficiency is very low.

Various crops in greenhouses in the north, due to short winter light time and severe weather loss caused by weather such as rain, rain, snow and fog; the crops in the southern greenhouse will also be lack of light in the rainy and rainy weather, which will make the crops unable to Normal photosynthesis. Plant growth lamp can supplement the plant scientifically and reasonably. It is suitable for all stages of plant growth. It can make plant leaves thick, roots developed and grow well, enhance resistance and immunity, promote plant early maturity, increase yield and improve Fruit quality. It can also inhibit the growth and reproduction of germs and eggs in the shed, reduce the amount of pesticides, reduce the pollution of the environment and crops, and conform to the current "green" trend.

Wireless Router

The name of wireless router can be separated out of two keywords: wireless and routing. Understand the technical principle behind these two words, you understand the wireless router.

Wireless is also what we often call Wi-Fi. Wireless routers can convert home broadband from wired to wireless signals, and all devices can happily surf the Internet as long as they connect to their own Wi-Fi. In addition, these devices also form a wireless local area network, where local data is exchanged at high speed and is not limited by the bandwidth of home broadband.

For example, many people have smart speakers in their homes that can be used to control various smart appliances. When you say small X small X, turn on the TV, the speaker actually finds the TV through the LAN and sends instructions, and does not need to connect to the Internet; And if you let it broadcast news, you have to get data through the Internet.

The Local Area Network we talked about earlier, also known as the Intranet, is represented by the Local Area Network (LAN) on the router, so the Wi-Fi signal is also called WLAN(Wireless LAN); The Internet we want to access, also known as the extranet, is represented on the router by the WAN(Wide Area Network).


On the Intranet, the IP address of each device is different, which is called a private address. All devices on the Internet share the same public address, which is assigned by broadband operators such as China Telecom Unicom.

The router is the bridge between the Intranet and the external network. The above mentioned IP address translation, packet forwarding, is the router routing function.

In other words, the router is the hub of the home network, and the data of all the devices must be forwarded through it to access each other or reach the external network, which means that one husband is the key and ten thousand men are not open, so the comprehensive router is also called "home gateway".

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