features: 1)demensions:300*300mm 2)led type:smd3528,smd 5050 3)beam angle:120 degree 4)can be celling or wall surface-mouned 5)main material:aluminum+pmma+ps 8)ambient temperature:-20 +40degree application: 1) commercial lighting 2)office lighting 3)ware hourse lighting 4)supermarket lighting 5)leb lighting