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LEDs are semiconductors that emit light. They must be cooled to ensure long life. Brighteners cool 120W LED illumination without expanding physical size. Every subsystem, such as optics, electronics, and thermal, needs to be designed for miniaturization and interoperability. 
Tongming Electric Introduces High Power LED Lighting to Replace 400 Watt Incandescent Lamps
Zhejiang Tongming Electric has launched an LED replacement that emits light equivalent to a 400-watt incandescent lamp – high-power LED lighting. Developed by the company's technical team, the product is powered by up to 120W and produces up to 10,800 lumens of brightness, equivalent to 90 lumens per watt. Although it is not the first 400 watt equivalent brightness LED lighting, it is a high-intensity LED lighting that entered the industrial energy-saving lamp market earlier.