Model Number: RSD-9006-88EM Brand Name: Ristar Key Specifications/Special Features: LED ceiling lightRSD-9006-88EMMaintained 3 hours emergency options available to meet the sudden blackout in order to keep as normal use, rechargeable battery charged in AC within 12 hours, 30% nominal power cost duration 3 hoursBattery (high temperature): 6.0V 1500mA NI-CD HT TuVEmergency output: 30% nominal powerEmergency duration: 3 hoursCharge time: <12 hours Electrical data Inputvoltage 220-240V AC 50/60Hz Rated power 18W LEDquantity 88 pieces SMD2835 Power factor PF>0.9 Opticaldata Colortemperature Warmwhite, purewhite, coolwhitefor option Beamangle 120degrees Lumen (±10%) 1400lm Lamp luminous Efficiency 77 lm/W CRI Ra>80 Other properties IPrating IP65 IK rating IK10 Material PCbase + PC diffuser Dimensions Φ315*97 mm Operatingtemperature -20 to+40degrees Lifespan 30,000hours Warranty 2years Certifications CE/EMC/RoHS/SAA