This 20 light non-connectable (without end-to-end plug) LED christmas light on green wire with ultra bright 5mm wide angle concave bulbs is great for smale scale projects. These long lasting LED christmas lights are perfect for using for craft projects using glass blocks， wine bottles and wreaths because the do not have the end to end plug at the end of the string. These are also great for other projects that require shorter LED light strings to finish the application. UL Listed for indoor and outdoor use.