... . 4,Aluminum shell. 5,3 years warranty. Item:LED panel light seriesPower:12WInput voltage:AC100-240VSize:Φ180x20mmOpening size:Φ165mmMaterial:Aluminum shell ... led chip and special thermal design to ensure high efficacy,low light lumens decay,and long life.6, Smooth, bright ... blinding the eye.7,Input voltage is AC100-240V.High power-supply efficiency,short starting time,no strobeflash.Installation ...