Scope of application: in the field of rail cars, locomotives, train cars, subway cars, cable trench, tunnel, subway platforms, corridors, airports boundaries of lighting applications that require waterproof, vibration-proof lighting places. Characteristics of NFC9121 performance to create a safe working environment a wide operating voltage, to ensure normal and stable lighting environment of severe voltage fluctuations. 2.LED light source, ensure that the lamps instant cold start and hot start. Integration aluminum alloy structure, lightweight, good impact resistance, vibration, shock and other environmental reliable and stable work. Quality optical design and anti-glare design, avoid visual fatigue of the staff. Easy to achieve energy-saving targets a high luminous efficiency, high-power LED light source, the light distribution design, with 99.99% high purity aluminum reflector cup and light transmittance up to 93% of the imported PC transparent parts, lighting efficiency up to 79%, higher than the industry level of 40%. 2 advanced and reasonable circuit design, with high-quality components, the electrical efficiency of up to 90%, higher than the industry average of 6%. 3 efficient light source + efficient light distribution + efficient circuit, making it more than 50% of the energy-efficient than the industry level. Reduce maintenance workload for seven consecutive years of uninterrupted work without replacing the light source, life is a fluorescent lamp 10 times. 2 shell corrosion level the WF2, to ensure that lighting does not corrode in harsh environments, no rust. Quality control system in accordance with the military standard, rigorous reliability, aging test, lighting a lower failure rate. NFC9121 technical parameters Rated voltage :85-260VAC / VDC 50Hz Light Source: LED light source power: 4 × 3W shell protection: IP65 corrosion: WF2 Dimensions: 350 × 135 × 56mm Total Weight: 1kg