YEJIA Silicone supplys high-end heat resistance and anti-yellowing silicone led lenses, with 94% light transmittance. Certified by ISO9001, ISO14001, ISO13485 and IATF16949, with Arburg LSR injection molding machines and clean workshop, we highly welcome custom silicone LED lenses. https://www.yejiasilicone.com/silicone-optical-productss/high-power-led-silicon-lens.html