Featurescomplete with wires and LEDs and can be lightedoperating voltage: 3V DC (don't use on more than 3V unless wire a resistor with each light)operating current: 20mA each lightsize: plesae check from photosreferring gauge: HO scale layoutsdefault light color: warm white long life LEDs and avoid getting too hotPackage Includes10 x complete painted lights10 x 620 ohm 1/4W resistors