External sunshade is the outdoor setting of shutters, curtains and other sunshade equipment. The main effect of external shading is to have a natural energy saving effect. The air between the louvers and the Windows under the interior shading equipment is susceptible to the greenhouse effect and causes the room temperature to stay high. However, the external shade shutters can not only isolate the outdoor sunlight, but also inhibit the indoor air heating. In the case of the use of "external shading" equipment, up to 45% of the air conditioning energy can be saved. Mainly used for outdoor sunshade products, requiring large torque to drive the operation. Such as electric rolling Windows, electric awning, windproof rolling curtains, pavilions, etc.
