12 Volt Blue LED Light Bulb Kit (Qty 10) for Instrument Panels, Gauges, Speedometers and other Automotive LED Light Applications Requiring a 12V LED Bulb - 10 Pack - No Resistor Needed 12 volt LED lights - no resistor needed! Works well on 4-12vdc Blue led - blue color with diffused lens for best light dispersion - 45 degree viewing angle Suited for automotive applications - 5mm round shape Easy to solder in 'through hole' or 'surface mount' applications Dimmable - dimmer at lower voltages, dims with automotive dash light dimmer switch