Nagulagu 5sets 44mm Lens+Reflector Collimator+Fixed bracket For 20W 30W 50W 100W LED QTY:5 sets lens kits(include 5pcs 44mm Glass Lens+5pcs 50mm Reflector+5pcs fixed bracekt) For 20W 30W 50W 100W high power led Light transmittance: 98%