50mm PMMA Fresnel Lens 28-100mm Focal Length Condenser(2 pcsx 70m)

PREMIUM PMMA ACRYLIC MATERIAL: Made of PMMA acrylic with 92% light transmittance, this 50mm diameter Fresnel lens delivers clear and bright optical performance for various lighting and projection applications MULTIPLE FOCAL LENGTH OPTIONS: Available in 28mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm and 100mm focal lengths, allowing you to choose the right condenser lens for your specific LED lighting or optical project needs THREADED devise FOR EASY MOUNTING: Features a 0.3mm thread pitch for secure and convenient installation, this round Fresnel lens is ideal for adjusting beam angles and output in spotlights, stage lights and flashlights WIDE APPLICATION RANGE: Perfect for LED lights, stage lighting, flashlights, fishing lights, DIY projectors, VR glasses, magnifying observation and various optical experiments or product development projects RELIABLE PERFORMANCE: With a thickness of 2mm and working temperature from -40°C to +80°C, this acrylic condenser lens maintains stable optical performance in demanding environments