PLASMALED Pre-Wired 10mm BLUE LED Bulb 12V DC for DIY Car Boat Toys Party Water Clear Light Emitting Diode Project (10 Pack) High quality super bright 10mm LEDs - 5 Chip .5W 150,000 MCD Blue - 40 Degree lens, 100mA Pre-wired with wiring - no soldering of resistors, no worries; Resistor will get hot to touch at 12-14V Pre-installed resistor allowing operation of 9V-14V DC Can be used anywhere for any purpose with 9V battery, car battery, boat, marine, ATV, Motorcycle Pack of 10 ; all are all separate and must be wired in parallel to any DC voltage source