grid lamp 4x14w body:0.3/0.5mm (or as per requirement) high quality cold-rolled steel sheet.Lamp holder: PC material by UV resistance processingDimension:613*613*75mmOptional reflector: matte aluminium,mirror aluminium, or laminated steelstyle: Grid can be "v" or "I"shape.ballast: magnetic ballast or electronic ballastWire: 0.5mm2 high temperature anti burning,