Storage Temperature:-40~+80°C. Operating Temperature:-25~+60°C. 2.Installation surface must be smooth, clean and dry. 3.The part of LED components can not be fixed on the surface of the sharp edge. 4.Strip should not be collided or crushed. 5.Strip can be cut following the cutting lines. 6.The LED strips,must not exceed 5 meters.whei used in a DC eries