Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: transmits 20% of visible light
Review: Pros: Super cheap way to insulate and reflect some of the light that would pass through a window. Better light blockage than most blinds.Cons: It reflects only around 80% of visible light and transmits the other 20%, so that it extends one's ability to sleep from 6:15am to 6:45am at best.This is not like general purpose Mylar -- it is an extra thin kind with lesser reflectivity. Each blanket comes individually wrapped, is smaller than a pack of cards, and weighs next to nothing.
