At our factory, we specialize in producing the highest quality greenhouse poly films and our {BHB®Greenhouse Black-White-Black Multiple Layer Panda Blackout Poly Film} is no exception. This film is designed with three distinct layers, including a black layer that blocks out light, a white layer that reflects sunlight, and another black layer to help ensure absolute darkness. Our film is not only ideal for grow rooms and greenhouses, but it's also great for creating blackout curtains and other light-blocking applications. With the added peace of mind that comes from purchasing from a reliable factory, you can be confident in the quality and durability of our products.