... .)x20mm. 4,Aluminum shell. 5,3 years warranty. Item:LED panel light seriesPower:12WInput voltage:AC100-240VSize:Φ180x20mmOpening size:Φ165mmMaterial:Aluminum ... ;high brightness;no IR, UV,heat effect,radiation, and strobeflash;latest efficient(95%) constant driver .2,Bright and uniform distribution light ... ,office,school,hospital or other lighting places.Detail images:Led panel series: Application: