universal style t8 to t5 conversion kit1. material: aluminium with white spray coating.2. with tri-phosphor tube lamp3. could be installed with ballast of 110v or wide range voltage 110~280v.4. constant output power, PF>=0.995. compliant with UL standard.namespec.volt.fixture size(mm)carton size(mm)pcs/ctn.no reflector35W110~280v1514×38×341530×220×17020no reflector28W110~280v1214×38×341245×220×17020no reflector21W110~280v910×38×34930×220×17020no reflector14W110~280v604×38×34635×220×17020with reflector35W110~280v1514×39×381530×220×17020with reflector28W110~280v1214×39×381245×220×17020with reflector21W110~280v910×39×38930×220×17020with reflector14W110~280v604×39×38635×220×17020