10pcs High power 10MM optical lens for 1W 3W LED lens is biconvex lens high 2.7mm Outer diameter: 10MM Height: 2.7MM, focal length: 14MM. Light transmission rate: 93% Material: imported PMMA package included:10pcs x High power 10MM optical lens for 1W 3W LED lens is biconvex lens high 2.7mm