Polaroid means using the normally narrow beam angle circle optics to achieve different beam angle, different shape of the facula. Main application is the partial lighting in the art exhibition, not only can achieve different facula requirements, but also can decrease the cost effectively.Principle: By designing the micro-structure on the variator, the light emitted by the small-angle lens is diffused into the desired shape and angle, and then the light transmitted by each micro-structure is superposed to form the final required light spot.P/N：HK-40@15-4-XPE-20-1g-1Size：Φ：40mm H:14.55mmFWHM：4°Material：PCEfficiency：85%Application：Wall washer、Narrow spot light、Spot Changing Track LightLens by LED：Cree: XPG
