2pcs Plano-Convex Lens Glass Focusing Lens, Single Lens Optical Elements Focus Lens, Diameter 16mm Focal Length 45mm, for 532nm Green 650nm Red Fat Beam Light Source, No.18

描述

2pcs Plano-Convex Lens Glass Focusing Lens, Single Lens Optical Elements Focus Lens, Diameter 16mm Focal Length 45mm, for 532nm Green 650nm Red Fat Beam Light Source, No.18