... and environmental protection, energy saving significant, long life, up to 50,000 hours or more, impact resistance, shock-proof, is ... ° (ambient temperature-25 °-60 ° to work long hours under temperatures) and far less than traditional halogen lamps in ... , Operation Temperature:-20°-+50° 8, Fixture Material: Aluminium9, Life Span: 50000Hours10, Surface Color: Silver/Brass/Shining White/Matt White11, ...