Led World 50 PCS 3W Extreme Royal Blue Power LED Diodes 445-450nm Plant Grow with 20mm Star Base Power: 3W QTY:50 Pieces Emitted Color: Royal Blue 445nm Wavelength: 445nm-450nm Already solder with star base DC Forward Voltage (VF): 3.4V~3.8V DC Forward Current (IF): 700mA