高压铸铝灯体, 平均壁厚4mm, 散热性能优良. 12mm钢化玻璃, 均匀承受力为2000kg. 铜质镀镍防水电缆锁, 硅胶密封圈, 耐温250度. IP67, 电器一级绝缘. high-pressure casting aluminum housing. tempered glass, thickness: 12mm purelyeven surface; waterproof. nickeled copper joint; special silicon-rubber packing washer;embedded stainless steelscrew nut; external connection box. IP67, class I insulation.