... product size:Φ60*107mm, Φ55*93mm,Φ48*88mm3.Power: 5W4.Input Voltage:AC110-240V5.Luminous Flux:280-310lm, 200-240lm ... +50°C14.Brightness declines: ≤2%/1000hrs15.IP grade: >IP2616.Led chip: 301417.Application: homes, offices, restaurants, hotels, malls, buses ... :Two Years20.Equivalent to 40W incandescent bulbs.21.Constant current,constant voltage.22.Environmental protection,energy saving,longest life.23. ...