Interior Sunlight Control Concerning different types of windows, the most tentative and effective ways is the interior heat and glare control. Surely, compared with the outdoor sunlight shading, the effect of interior sunlight shading perhaps shows a bit inferior. However, it is much easy to control the sunlight and glare, and also reduce the cost, at the same time, which caters for the interior design with individuation and elegance. Outdoor Sunlight Control The most effective way to control heat and glare is to keep away the sunlight out of the window. Once the solar radiation enters into the room, it will be diffused to the whole room in the form of heat. Outdoors sunlight shading just like a large tree, which is contributed to decrease the air-conditioner's consumption, reduces the burthen and is to be conducing to lessen glare and avoid from indoor furnishings and decorations fading.