The 148 foot spool of 1/2 inch by 3/4 inch 3 wire 120 volt green rectango chasing flexilight rope light consumes only 11.04 watts per foot and can be cut every 30 inches. Each spool is manufactured with anti aging UV protected PVC covering. All of our rope light is UL listed for indoor and outdoor use under UL2388. Bulb spacing is 1/2 inch and each spool includes 3 power leads, 3 power connectors, 3 end caps and 3 splice connectors. Controllers sold separately.