... . 4,Aluminum shell. 5,3 years warranty. Item:LED panel light seriesPower:12WInput voltage:AC100-240VSize:Φ180x20mmOpening size:Φ165mmMaterial:Aluminum ... 3,Ultrathin and ultra-light.Special circuit design,avoiding any problem of lighting output caused or influence by single faulty LED. ... ,meeting room,factory,office,school,hospital or other lighting places.Detail images:Led panel series: Application: