... LED SMD 3528 1.Size:3mm,5mm,10mm LED 2.Shapes:Round,SMD LED 3.LifeSpan: 50,000 Hours 4.Wave length: 450-650nm LED SMD ... 18000-20000MCD13. Life Span: 50,000hrs Application of led lamp1. Recessed lighting, shelf lighting, ceiling/wall ... 3. Back lighting, step lighting, light boxes 4. Merchandising, exhibition stands, and panels5.All led lighting source,(led spotlight,led ... 5pcs 2012 high power LED SMD 3528