Battery Co., Ltd. of Harbin Harbin Guangyu Guangyu Battery Co., Ltd., is COSLIGHT core subsidiaries, is stationary VRLA battery of professional production companies, is China's largest and similar products, technology, the most advanced equipment professional production companies. Guangyu battery set more than 10 years of production experience and scientific research, development and production of unique properties of stationary VRLA battery products. Complete product varieties, good looks, the performance indicators have reached the international advanced level, and has a number of national patents. Communication with VRLA batteries in China's largest technology equipment with advanced battery manufacturing company. Chinese market share of over 30%, the production company for the Harbin Guangyu Battery Corporation, Shenyang, Northeast Battery Company. Lithium-ion batteries, the production company - Harbin Guangyu Power AG. Lithium ion batteries are the second largest product, sub-rectangular liquid polymer battery and lithium iron phosphate batteries and three categories. Square liquid lithium is mainly used in mobile phones supporting customers including Huawei, ZTE, IAC, the National Rainbow and other large domestic mobile phone manufacturing companies. Polymer batteries are mainly used in MP3, Bluetooth headset, mobile phones and other small electronic products. Clients include the National Rainbow, Konka, and other large Nordic companies. Lithium iron phosphate is mainly used in electric bicycles, electric vehicles and communications with backup power. Nickel-hydrogen battery production company - Lexel Battery Co., Ltd. in Shenzhen. Lexel Battery Co., Ltd. production of nickel-hydrogen batteries are mainly used in the field of communications and the civilian market. Communications include cordless phones, fixed phone business, radio series. Civilian market include: razors, radios, tape recorders and other civilian areas. Especially in the domestic leading technology products for civilian low self-discharge areas is outstanding lead. DC power products, the production company - Harbin Guangyu Power AG. DC power products include power systems 220V DC operating frequency switching power supply system. Communication with 48V, 24V high-frequency switching DC power supply systems and electric bicycle lithium iron phosphate battery charging and intelligent protection control system, communication with supporting lithium iron phosphate, 48V high-frequency switching control and protection system. Among them, high-frequency switching power system 220V DC operating power is one of the largest enterprises.