Founded in 1997, we are specialized in the development, research and production of lighting products, and dedicated to providing high-quality railway lighting and commercial lighting solutions. Our products including LED drivers, LED fixtures, intelligent lighting control system, etc,. With our extensive experience and innovative spirit, we have rapidly grown into an industry leader, serving both domestic and international markets.
Longyun won many national patents, now we have more than 1000 varieties of products, and takes the lead in passing IRIS, ISO9001, ISO14001, ISO50001 and EN17460(DIN6701) in the industry.
Up to now 27 years
More than 300 employees
More than 10 fully automated production lines
power module consists of electromagnetic compatibility, voltage conversion, voltage stabilization, and MCU modules.LED power module mainly adopts constant voltage PWM dimming.
A centralized power supply is used.
The interior lighting system adopts digitization protocol, independent control of region and individual luminaire. Support Ethernet TRDP, DALI, RS485, CAN communicating protocol control.
RS485 dimming and tunable white control output, 7-channel independent dimming and tunable white PWM output, 2-channel logic DI input, 2-channel DO output, 3-channel sensor signal input.
Support multiple control modes: automatic mode, day mode, night mode, station mode, emergency mode, etc.
The luminaire adopts two types white LEDs, cold and warm, as light sources, the color temperature is 3000K and 6000K, the color rendering index is more than 80.
Auxiliary lighting luminaires, such as hidden light, ambient lights, adopts blue, purple or RGB LEDs light source, which shows different lighting effect.
The control display screen allows editing the setting of the temperature, RGB values, brightness, and automatic control time quantum data for each luminaire in each mode, and can achieve a preset rendering according to customer’s requirement.
Automatically detect the operating status of interior lighting system: voltage, current data, working mode, output PWM, output DI, DO, RS485 data situations, etc.
Fault status: power supply failure reporting, sensor failure reporting, can be specific to reporting the fault situation of the Led module of each luminaire, etc.
Remote web page upgrade software, download operation/fault logs, check faults online, conduct preliminary analysis and location analysis for the fault situation according to the data.
Service Hotline：(86)755-29503812
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