... aluminum alloy. which have anodized surface, high anti-corrosion, noble.It is suitable for shops, galleries, museums, hotels, bars, theaters, supermarkets ... can install on the ceiling, the angle can be adjusted.it is replaced traditional halogen lamps, almost no radiation, energy-saving ... Temperature: -20°C~-40°C AC220V LED CEILING LIGHT 3WATT DOWN LIGHT Dia45mm cut-out