MDF, also known as fiberboard, is a man-made board made of wood fiber or other plant fiber, using urea-formaldehyde resin or other suitable adhesive. According to the difference of its quota, it is divided into high density board, medium density board and low density board.
Due to its soft and impact resistance, MDF is also easy to reprocess. It is a good material for making furniture in foreign countries. However, because the national standards for high density boards are several times lower than international standards, the quality of MDF used in China. Still needs to be improved.
Medium and high density board (MDF-Medium·Density·Fiberboard), according to the national standard GB11718-89: using lignocellulose or other plant fiber as raw material, applying aldehyde urea resin or other suitable adhesive to make the density of 0.50~0.88 The plates in the range are called medium and high density fiberboard.
The high-density board has a poor nail holding force than the particle board, and if the screw is loosened after the screw is tightened, it is difficult to fix it because the strength of the density board is not high. Moreover, nowadays furniture uses high-density boards, and inferior high-density board furniture, the content of formaldehyde is very high, and the human body is also very harmful. After being aired, the sheet can eliminate formaldehyde.
5 bars LED Grow Light is a kind of lamp that provides light for plants. It usually consists of five light bulbs, each representing a claw, which can provide plenty of light and lighting effects.
The use of the 5 bars led grow lights can be described according to the following aspects:
1. Light time: According to the needs of plants, the use time of 5 bars growth lights can be adjusted according to different stages and types. Generally speaking, the time that plants need light is generally about 10-12 hours.
2. Light intensity: The light intensity of the 5 bars grow light can be adjusted according to different plant types and growth stages. For plants that need stronger light, the lamps can be placed in a closer position to provide stronger light.
3. Lighting range: The lighting range of the 5 bars indoor grow light depends on the design and installation position of the lamp. In general, the lamp should be able to cover the entire growing area of the plant to ensure that the plant can fully receive the light.
4. Use environment: 5 bars plant lights can be used in both indoor and outdoor environments, but they are usually more suitable for indoor use. In the indoor environment, the lamps can be placed in different positions as needed to meet the light needs of the plants.
In general, the use of the 5 bars plant grow light should be adjusted according to the needs of the plant and the growth environment. Through reasonable light time, light intensity and lighting range, it can provide suitable light conditions for plant growth and promote the growth and development of plants.
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Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com