LOW E GLASS
The Low E- Glass (low emissivity) is a type of reflective glass that appears to be clear while reflecting heat back to its source. It reduces heat loss while providing maximum light transmittance, and also helps resist UV rays. Depending on viewing angle and sunlight a slight tint can be seen. Glass from different runs or with different metal oxide coatings will exhibit differences of hue or color, making it extremely difficult to match multiple lites of Low E glass.