led world 5 Pcs Cree XLamp XT-E 1W-5W Royal Blue 450NM-452NM Hi-Power LED Emitter Bead 20mm Base DIY Quantity: 5 Pieces Power:1W-5W LED Type: Cree XT-E Emitted Color: Royal Blue Wavelength: 450-452NM Viewing angle:120 degree Base Diameter : 20mm DC Forward Current: 300mA-1500mA DC Forward Voltage (VF) :DC2.9-3.6V