LED tube light is application of a new type of LED lighting light source on the basis of traditional tube light of the development of improved products, compared with traditional tube light has the following advantages: energy saving, low carbon, long life, good color rendering and fast response.LED tube light, a design more beautiful light, installation to keep building decoration of the overall unity and perfect, does not destroy the set of lamps and lanterns, light hidden inside the building decoration, light source is not exposed, no glare, the visual effect of soft and uniform.
P-n junction terminal voltage constitute a certain potential barrier, when the positive bias voltage drop time base, P and N the majority carrier diffusion to the other party.Due to the electron mobility is much bigger than hole mobility, so there will be a large number of electronic spreading P area, constitute of P area of minority carrier injection.These electrons and valence with hole composite, composite when the energy in the form of light energy to release out.This is the principle of PN junction glow. Led Down Light,Led Down Light Cover,Led Downlight Ceiling Down Light,Led Ceiling Down Light NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , https://www.aldiecastings.com
The maintenance of automotive air-conditioning systems is often overlooked by car owners. In fact, it is not difficult to maintain car air-conditioning by yourself. "Generally speaking, the automotive air-conditioning system will gradually age after about five years. Its performance is mainly due to the decline in cooling efficiency and the lack of strong winds." Mr. Wu, a salesperson at a 4S store in Chengdu, said that although manufacturers and 4S stores often organize car owners, Car air conditioning testing and maintenance work, but if you want to do your own maintenance work, some of the car air conditioning repair additives on the market is a good helper.
Mr. Wu said that these automotive air conditioning additive products can enhance compressor sealing, reduce wear, reduce noise, and improve the efficiency of the compressor, which can greatly reduce the friction inside the air conditioner and increase the tightness and enhance the cooling effect. This will enable air conditioners and various functional components inside the car to exert high work efficiency, and thus achieve the purpose of prolonging the service life of automotive air conditioners. “There is also a package of additives for air-conditioning systems priced at around RMB 400 in the automotive supplies market. Through this product, the owner himself can carry out a series of processes such as maintenance, cleaning and enhancement of refrigeration for automotive air conditioners.