Purposely studied to increase the greenhouse effect, the energy saving, and to obtain an ideal light diffusion together with a very high total transmittance. Tristar film, thanks to the combined actions of accumulation and retention of heat inside the greenhouse during the night hours, saves crops from damage even in case of sudden and sensible temperature drop. Tristar is additivated with special IR adsorbers that create the “diffusing light effect” and prevent the burning of the cultivations, caused by too hot solar radiations, without compromising the quality and quantity of the light transmitted. Antidrip is present.