13w led down light 1.LED source:high power LED ... die-casting aluminum alloy, excellent heat elimination, low light attenuation.2. Adopting optics grade PMMA materials, high ... transmittance. 3. Working Temperature:-25°C-45°C (indoor environment).4. Lifespan: >50,000 hours.5. High ... UV, no IR.ApplicationsShowcase, hotel, restaurant and other indoor illumination; Exhibition hall, art hall, museum, office, ...