Don't limit your decorating to a space that requires an outlet; use the battery operated lights to free yourself from the burden! This set of fun LED little lights are vibrant and more energy-efficient than traditional incandescent lights. Decorate a mantelpiece, centerpiece, or Christmas wreath with these lights for a pop of color. Features 10.5" red lead cord. UL certified and approved for indoor use only. If one bulb burns out, the rest will stay lit. Straight line construction. Requires 3 "AA" size batteries - not included. Non-replaceable bulbs. On or off switch located on the back of battery pack. Cannot connect multiple sets together. Specifications Bulb Color: Red & Orange. Wire Color: Red Invisa Lite. No. of Bulbs on String: 15. Material: Plastic. Total String Length: 5.75'. Lighted String Length: 4.8'. Spacing Between Each Bulb: 4". Bulb Size: 3 mm Micro Wide Angle. Weight: 1 lbs.