Material: Reflector Aluminum or Film Steel or Stainless Steel Watt: 4 X 20W Voltage: 220V-240V Frequency: 50/60Hz Size: 600 X 600 X 80mm Imported high quality materials, anti-oxidation, preserve illumination intensity. All made of imported high quality material, soft, bright right. Imported electro-Aluminum stainless steel, anti-fade. Lamp holder paint spraying, ballast made of imported material, lifetime 6-12 years. Reflector is designed by illumination theory, dazzle-proof, effectively protect eyesight and energy saving.