Plane infrared fresnel lens are primarily used to transmit infrared light for motion detector use. Passive Infrared PIR Fresnel lens is made of milky white flexible 0.4mm thick High Density PE with UV protection.
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Hi....I just recieved my fresnel lens' today. They were packaged very nicely and were all individually wrapped. I was quite surprised at the speed at which i recieved them also. Very happy with your service and products.
thank you very much. Del D. (USA)