2-Pack Rectangle Fresnel Lens 200*170MM Focal length 185 mm Acrylic fresnel Lens Concentrated amplification DIY projector

Description

Size:200*170mm Focal length:185mm Material:PMMA Thickness: 2mm Groove pitch: 0.3mm feature ad advantages: 1.high light transmittance 2.limpid transparent 3.high light penetrability,more brighter 4.high quality competitive price. 5.caring service. 6.custom size. the range of Application: Focusing action.Imaging produces the parallel rays .It is suitable for miner's lamp,LED lamps,PROJECTOR .also suitable for Solar energy collector system, start a fire under sunlight, hot water heater, solar furnace, LCD projector,AV projector,HOME cinema magnifier and so on...