THREADED CONDENSER devise: Round Fresnel lens with 0.3mm thread pitch for secure mounting in LED light, stage light, flashlight and projector assemblies HIGH TRANSMITTANCE PMMA: Acrylic lens material delivers 92% light transmittance for bright, clear beam output and efficient light concentration MULTIPLE DIAMETER OPTIONS: Available in 20mm, 40mm, 42mm, 50mm, 60mm and 70mm diameters with selectable focal lengths to match your optical setup VERSATILE APPLICATIONS: Suitable for adjusting beam and output angle in lamps and lanterns, DIY projectors, VR glasses and magnifying observation OPTICAL EXPERIMENTS READY: Ideal for optical research, product development and various optical experiments; operates from -40°C to +80°C
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