Dear Sir:Shenzhen Guangyu Electronics Co. was founded in 1998. It has been known that the first in China visible laser diodes were made in 1998. The paten of chip on board was approved in China 2000. This technology can be applied in the consumer product for cost down. Guangyu Electronics’ team is specialized in manufacturing, assembling, packing and testing the laser diodes. Our product including Key Chain Laser, Multi Function Watch, Laser Colt Laser, Party Lighter, Laser Pen, Laser Ball Pen, Coruscation Laser UFO, etc. Guangyu Electronics also continues developing the other application products, thereby insuring that all customers’ needs will be met. In present the products are mainly focused on laser diodes, laser modules and laser pointers in standard wavelength of 650nm.
