... in 3 materials of glass, PC, and aluminum alloy. Because of the saving energy character, 15W ... (Transparent or Milky)Operation Temperature-20~40°C (-4~104°F)IP GradeIP 20 (Indoor use, dry ... % Energy-saving over Fluorescent tubes.4.LED Tube using aluminum alloy shell, with PC cover, have good heat ... for Factories, Offices, Conference, Meeting rooms etc.4. Display lighting for the articles in your stores ...