Ultraviolet Lamp,Pll Uvc Tube,Pll Uvc Light,Pll Uvc Bulb Changxing leboom lighting product CO.Ltd. , https://www.leboomuv.comHow to cool down the summer home? Blocking the entry of the sun is also a very necessary means. We can arrange the home "cooling array" according to the different characteristics of the four directions of illumination, using three kinds of shading methods, so that we can not only enjoy the bright light, but also effectively block the heat of the sun. POINT1 southeast window day