... . 4,Aluminum shell. 5,3 years warranty. Item:LED panel light seriesPower:7WInput voltage:AC100-240VSize:Φ145x20mmOpening size:Φ130mmMaterial:Aluminum ... circuit design,avoiding any problem of lighting output caused or influence by single faulty LED.4,Stable and durable.Long ... ,meeting room,factory,office,school,hospital or other lighting places.Detail images:Led panel series: Application: