The blue LED rope lighting comes in a 150-foot spool that is 225 watts total. The rope light comes in 3/8" (10mm) or 1/2" (13mm) in diameter with a bulb every 1 inch and is 120 volts with two wires. The rope may be cut every 36 inches. Each spool includes 2 power cords, 1 splice connector, and 1 end cap. LED lighting is energy saving and may be used indoors and out.