Light Variation line refers to the change from white to other colors in the sun, or from one color to another. It can not be separated from the glass, in the open world the effect is obvious. And it can't be exposed to the sun for a long time. There are lots of changing colors,specifically, changing from white to red, white to yellow, white to blue, white to sky-blue, white to orange, white to grey, white to purple, white to green, white to black, blue to red, red to yellow, green to orange.
Light Variation Temperature
Temperature variation line is white at a certain temperature. If it is lower or higher than this temperature, it will become another color. For example, the red temperature change line is 22 ° C , the line is white at 24 ° C, and it can change from one color to another at 20 ° C.
Method of Usage: Mainly used in embroidery