Real glass, not plastic or acrylic. Looks pretty as a flashlight lens. When focused to pecise distance, projects LED rather well. Not the brightness or exact effect I was hoping for. Projecting just the emitter die with no spill is fun for throw, but pretty useless as a torch that you would use... Real glass, not plastic or acrylic. Looks pretty as a flashlight lens. When focused to pecise distance, projects LED rather well. Not the brightness or exact effect I was hoping for. Projecting just the emitter die with no spill is fun for throw, but pretty useless as a torch that you would use for most practical purposes. Not very many flashlights will natively fit this lens, nor will the focal length be right by default. Be prepared to experiment. If you think you have an application for this piece, then at this price, why not try one? Read more