Material: Imported or made Cin Cchina steel Surface finishing in the process of 14 procedures including acid cleaning, etc Reflector is made of imported or made-in-china aluminium Lamp-holder: T5 or T8 Tubes: 1 to 4 Electronic and magnetic ballast are available Recessed or ceiling mounting V or I shape grid Character: Package: two in one carton Ul, CE, VDE approved Refined design, more economical and easy mounting Surface is treated with electrostatic-proof