Review on Coavas One Way Window Film: Sun Blocking 23.6 x 78.7 Inches Non-Adhesive Window Tint for Heat Control, Glare Reduction, and UV Protection - Perfect for Home and Office, Removable and Static Cling, Black by Katie Burgeson

I have a two storey house. The rooms on the upper floor have windows to the east or west. There is a noticeable difference in temperature due to the amount of sunlight coming in through the windows. I bought the shade hoping it would help make the rooms both cooler and darker from the morning/evening light. I am more than happy with this product. I noticed a difference in the temperature of both rooms and the rooms got a little darker without even noticing that the window was tinted. Initially I bought enough for 1 room, after 1 week of use I bought enough for another room. I highly recommend this product!