The Shangqiu Institute of optoelectronic devices is an R & D, production, sales as one of the high-tech enterprises, with strong technical strength and rich engineering design and construction experience, as well as a group specializing in product development, and development of senior technical personnel has been form a set of production, learning and research, sales, service as one of the operating mechanism; mainly engaged in the solar intelligent controller. power inverter power supply, communications, power inverter, inverter control one machine, solar grid inverter, emergency power supplies (EPS), electricity / communications-specific UPS, solar LED lighting products, research, development, production and sales; the same time, provide a variety of application systems and engineering services, including: all kinds of power, solar street lighting system, solar power station, solar communication power systems, wind - photovoltaic generation system, solar grid power systems, solar home power systems, solar landscape lights, solar advertising light box, solar traffic sign light / brand, solar radio and television, integrated systems and so on. Planning for different user requirements for the customer design optimization of renewable energy development, power supply technology, the economic program. 

 My unit has a perfect production, quality management system, commissioning and test equipment needed for the production. I per unit of product marketing throughout the country, in the high altitude and harsh climate, time is tight and heavy tasks, installation, transportation difficult conditions, the Company can shelf life, quantity, and the successful completion of the project design, transportation. The products are excellent quality, high price, perfect service renowned domestic and foreign markets. 
 High-performance stable products with high technological content in the solar street lamp controller, solar home power station equipment. 
 The PWM-15A series of waterproof solar street lamp controller 
 An operating current of the controller: 5A/10A/15A. 
 Second, the controller has 12V/24V automatic recognition (in the case of supply 12V/24V solar light compatible). 
 Third, the controller has a waterproof, moisture-proof characteristics. 
 4, the controller can be set to control state of pure light. 
 5, the controller can be set to light control + time control status. 
 6, the controller can be set for three hours to control the output state. 
 An evening lit light source (solar light) turns off the light (solar light), late at night, dawn lit the light (solar light). 
 Control 2. Evening full power of the light source, the middle of the night to control the light source half-power, control dawn light full-power operation. 
 7, the controller has a floating charge, over discharge the automatic recovery, temperature compensation, the PWM pulse width modulation charge. 
 8, the controller has over-voltage shutdown, low voltage shutdown, over-discharge shutdown, load and battery reverse short circuit of solar modules, load short circuit, overtemperature Overvoltage night backflow function