ar led 9.Led luminous efficiency:10-11lm/pcs 10.Led color index(cri):ra>72 11. Power factor (pf):0.94 12.Life span: 50, 000 hours 13.Warranty: 2 years Product feature 1.Long life span led that more than 50, 000 hours. 2.70-90% energy saving than traditional lamps. 3.Good quality aluminous lamp body with perfect cooling character. 4.Low consumption and efficient led with high cri and luminous flux. 5.Ww 2700k3500k, w6000k-6500k. 6.Built-in led driver with ic that could work efficiently under ac100 to ac240v. Application 1.Store, plaza, mall, supermarket and warehouse lighting. 2.Counter, display window, show room and museum lighting. 3.School, hospital, office, meeting room, residential area lighting. 4.Bar, restaurant, hotel bedroom, dining room, hall and lobby lighting. 5.Other indoor occasions need led tube. Other information Our service 1.Your inquiry related to our products or prices will be replied within 24 hours. 2.Well-trained and experienced staffs to answer all your enquires in fluent english. 3.Oem & odm welcomed, our professional r&d dept. Will realize your customized lighting. 4.Distributorship is offered for your unique design and some of our current models. 5.Protection of your sales area, ideas of design and all your private information. White box+carton box+ wooden box