Founded in the mid-1980s as an electronics factory, we were re-established in 2000 as Hangzhou Sangao Optoelectronics Technology Co., Ltd. With much experience in the diode field, we can now supply LEDs, LED displays, dot matrix displays, light bars, clock and watch screens, LED backlight, plastic mould, LED guide board. These products are widely used in elevators, office equipment, meters, cameras, home appliances, motors, traffic control devices, and related applications.With a 5,800 square meter factory, we are equipped with an automatic die bonder, wire bonder, epoxy dispenser, temperature-controlled vacuum oven, sealer, hydraulic pressure punch, and various types of testing instruments. The latter of these items include, but are not limited to, automatic testing machines, wave length testing machines, and electrical product aging equipment.Outputting 3 million pieces every month, we have implemented comprehensive quality control procedures to cover every aspect of the production process. In addition to using the aforementioned QC equipment, we also have skilled quality assurance staff conducting regular product testing on the basis of our stringent in-house technical standards. Now having annual sales worth over USD10,000,000, we are pleased to invite companies form home and abroad to cooperate with us. Welcoming your inquiry by phone, fax, email or visit to our factory, we hope to become your business partner in the near future.

Picture	Certification Name	Certified By	Business Scope	Available Date --- Expired Date	Verified
	ISO9001	CNAS	Design, developmet and production of optical led display, led backlight, light guide panel.	2019-04-17 ~ 2022-02-17	Verified
	ISO14001	CNAS	Design,development and production of optical led display and led backlight;production of light guide panel	2019-04-17 ~ 2022-02-17	Verified
	ISO9001	Gainshine Assessment	Design, development, production and service of Optical LED Display, LED Backlight, production and service of Light Guide Panel.	2012-02-11 ~ 2015-01-11
	High and new technology enterprise	Science and Technology Agency	LED products	2009-12-07 ~ 2013-12-06
	Innovation Funds Project approval certificate	Technology innovation fund management center	Injection molding of LED Backlight for meters and instrument	2011-02-22 ~ 2013-02-22

Business Type	Manufacturer, Trading Company	Country / Region	Zhejiang, China
Main Products	LED Digit Display, LED Backlight, LED Dot Matrix Display	Total Employees	201 - 300 People