Flashlight lamp glass Dia. 15mm 22mm 23 28mm 30 35 43 50mm 52mm Optional Plano convex Optical Glass spotlight project light Lens

5pcs 14mm pmma plano convex lens acrylic led flashlight optical lens focal length 10mm 12mm optional

1

1

-4%

74mm dia optical glass focal length 60mm optical high-power led plano convex lens diy projector plano-convex condensing lenses

1

1

-0.5%

1 piece 12mm high power lamp photics glass plano convex lens led optical lens 1w 3w 5w laser light lenses

0

0