New ETFE films having controlled transmittance in three wavelength ranges were developed. For ultraviolet (UV), new UV-blocking filler (CeO₂:SiO₂ = 40:60) and the surface treatment agent for dispersing the ETFE resin were established. This UV-blocking film is transparent and has good weather resistance. For visible light, the spectrum conversion film which increases the mass of light in the wavelength range of 600 to 700 nm was developed. In particular, the weather resistance of the film is not very strong. Some vegetables represented good effect under this film. For near-infrared light, the ETFE film using fillers coated with silica LaB₆ which absorbs near-infrared light was developed. This NIR absorption film has good weather resistance. The effect of the dropping leaf temperature was observed, but the illuminance became low. It is expected to develop new fillers.