Automobile silencer, also known as a muffler or exhaust silencer, is a device used to reduce the noise produced by the exhaust gases of an internal combustion engine. It is typically installed in the exhaust system of a vehicle and works by using various chambers and baffles to redirect and dampen the sound waves created by the engine. Protector Wire Sleeve,Braided Sleeve For Car Silencer,Expandable Braided Sleeve,Automotive Wire Harness Dongguan Liansi Electronics Co.,Ltd , https://www.liansielectronics.com
The LED fluorescent tube adopts the MCOB packaging patent technology of the Chinese Academy of Sciences Haixi Research Institute and Wanbang Optoelectronics with independent intellectual property rights, the high-efficiency effect chip of Sanan Optoelectronics, and the high-efficiency phosphor of Sichuan Xinli Light Source. 
The primary function of an automobile silencer is to reduce the noise levels emitted by the engine, making the vehicle quieter and more comfortable for passengers and pedestrians. It also helps to comply with noise pollution regulations in many countries.
In addition to noise reduction, a silencer can also have a secondary function of improving engine performance. By optimizing the flow of exhaust gases, it can enhance the engine's efficiency and power output.
154.7lm/w LED tube lighting world record
Recently, the LED fluorescent lamp jointly developed by the Chinese Academy of Sciences Haixi Research Institute, Wanbang Optoelectronics, Sanan Optoelectronics and Xinli Light Source was tested by the National Semiconductor Light-Emitting Device (LED) Application Product Quality Supervision and Inspection Center, and the overall lighting efficiency reached 154.7 lumens/W. The world record for the overall lighting efficiency of LED fluorescent tubes released about 3 months ago was refreshed.