NFC9121A / B LED dome light Ocean King NFC9121A / B LED dome light one. NFC9121A / B LED ceiling Scope NFC9121A / B LED dome light for a variety of indoor and outdoor workplaces, China's coal industry, PetroChina, Sinopec, CNOOC, electric power, metallurgy, railways, steel, shipbuilding, military, public security and fire, chemical, government departments and large enterprises do need to use fixed lighting. Two. NFC9121A / B LED dome light structural characteristics 1. NFC9121A / B LED dome light to create a safe working environment wide operating voltage, to ensure normal and stable voltage fluctuations in the harsh lighting environments. 2. NFC9121A / B LED dome light is LED light source, to ensure that lighting instant cold start and hot start. 3. NFC9121A / B LED dome light is integrated aluminum alloy structure, lightweight, impact resistance, and can be reliable and stable work under vibration and shock environments. 4. NFC9121A / B LED dome light quality optical design and anti-glare design, effectively avoid visual fatigue staff. 6. NFC9121A / B LED ceiling light easily achieve energy efficiency indicators of high power LED light source, precise optical design, with 99.99% high purity aluminum reflector cup and light transmittance of up to 93% of the imported PC transparent parts, lighting efficiency up 79%, higher than the industry average of 40%. 7. NFC9121A / B LED dome light circuit design advanced and reasonable, with high-quality components, electrical efficiency up to 90%, higher than the industry average of more than 6%. 8. NFC9121A / B LED dome light and efficient light source + efficient + efficient circuit, saving more than the industry average of 50%. Reducing the maintenance workload for seven consecutive years of uninterrupted work without replacing the light source is a fluorescent lamp life 10 times. 9. NFC9121A / B LED dome light housing corrosion grade WF2, to ensure that lighting does not corrode in the harsh environment, does not rust. 10. NFC9121A / B LED dome light installation is a ceiling embedded. Three. NFC9121A / B LED dome light to use 1. NFC9121A / B LED dome light wiring hole with the door open, the 8 ~ 14mm three core cable line into lamps, tighten the compression nut to ensure that the cable of the seal, then the cable three thread the cable to the corresponding terminal, directly connected to the power supply or connect the extension cord, then power to achieve lighting. 2. Turn off the power switch, according to the site lighting needs, determine how and where to install NFC9121A / B LED ceiling lamps, plus the pad M4 ~ M5 screw the light fixtures installed. Four. NFC9121A / B LED dome light technical parameters Rated voltage AC / DC12-48V 50Hz AC / DC85-260V 50Hz rated power 4x3W LED light source type power factor greater than 0.9 Protection class IP65 Corrosion grade WF2 Insulation class I Dimensions 350x135x56mm weight 1KG five. NFC9121A / B LED dome light ? Keep NFC9121A / B LED light fixture housing and the transparent parts of the surface clean to ensure good light transmission properties. 2. Avoid hard objects touching NFC9121A / B LED dome light transparent surface to prevent scratching. 3. Installation and maintenance NFC9121A / B LED dome light, you must first disconnect the power. 4. Non-professionals may not disassemble NFC9121A / B LED dome light. Six, NFC9121A / B LED dome light Quality Assurance The company has passed ISO9001: 2008 international quality system certification audit, NFC9121A / B LED dome light strictly enforce the ISO9001 international quality management system standards to ensure product quality fully meet the state standards and design requirements, NFC9121A / B LED ceiling of 7 years warranty (lamp warranty for one year), from the date of purchase seven years, there NFC9121A / B LED dome light normal use of any failure by the company responsible for maintenance free. If you want to learn more about lighting further detailed parameters, lamps prices, lamps and other specifications models, please feel free to contact us, sincerely to provide you with the most satisfactory service, Mr. Tu 17707234356 QQ526382342 Company's website http:! //www.whcxh .com telephone 027-65528088 The following is the company's various products Summary: CH368 FL4810 FL4830 FL4870-LZ2 IW5500 JIW5281 JIW5300 JIW5600 JW7500 JW7621 JW7622 MSL4720 MSL4710 SFD3000B SFW6110A SFW6110B SFW6120 SFW6130 T5180 YFW6211-HK1 BW6100 FL4800 FL4841-LU FW6100GC-J FW6100GC -JS FW6100GF-J FW6101 FW6102GF IW5110 IW5120 IW5130 JIW5280 JW7200 JW7210 JW7300C JW7300B JW7301 JW7400 JW7620 JW7623 RJW7010LT RJW7102-LT RJW7103 NLC9600 NFC9100 NFC9101 NFC9112 NFC9121A NFC9121B NFC9173 NFC9175 NFC9176 NFC9178 NFC9180 NFC9183 NFE9100 NFE9112A NFE9112B NFE9121 NFE9178 NFE9180 NGC9810 NGC9810A NGC9800 NGC9800A NGC9830 NJC9500 NLC9600 NSC9700 NSC9720C NSC9720 NSE9720 NTC9200 NTC9200A NTC9210 NTC9210A NTC9220 NTC9230 NTW9270 NYC9321-CX NYC9330 BCW6222 BFC8100 BFC8110 BFC8120-L BFC8120 BFC8130 BFC8183 BFC8900 BFC8930 BFE8120 BPC8710 BPC8720-L BPC8720 BPC8730 BTC6150 BTC8210 BXE8400 BXW6229 BCX6225 BCX6227 BAD52 BAD54 BAD58 BCX6228 BJY BTC6131 BTC6160 BYW6190 BZD CBD81 CBD82 FAD52