LED Lens Reflector Collimator For 5050 SMD 10 30 60 90 140 Convex Optical Lens | eBay
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Waterproof Lens 10x60° For 5050 LED Or Cree XLamp XML LED [BY-TP13] - US$0.30 : Topledlight
21.5mm Optics Lens Waterproof For Cree XML Semileds RGBW 5050 LED [BY-LEN5050] - US$0.40 : Topledlight