... LED Life-span: 50000HrsComponent part1. Thermal conductive radiator 2. Aluminium transformer box and reflector 3. Lifting hook 4. PMMA diffuser ... ranges from 30-120W, which makes 70-80lm/W, with low lumens depreciation and without double image.2.High performance ... , 100-277V input voltage3.Anodized tensile replectors and an aluminium body with a patented-cooling design,Corrosion proof, Dust proof, Water ...