There are 108 LED mini blue lights on this green wire strand of net lights. All you have to do is place this 4' by 6' net on top, plug it in and you are done. The LED bulbs use considerably less power and are significantly more durable than traditional incandescent lights. The bulbs/lenses are also weatherproof and non-removable or replaceable. If one goes out the rest stay on. Has a one year limited warranty and is intended for temporary 90 day seasonal use. Light string has traditional stackable, end-to-end plugs.