Wintergreen Lighting Multi-color LED bulbs increase energy efficiency by up to 90%, allowing for immediate ROI. Save money instantly by saving on battery replacements. Revolutionary micro sized fairy lights are embedded in ultra thin, bendable wire. Multi-color LEDs shine bright. Invisible wire is easily concealed in greenery, crafts, and holiday and event decor, allowing lights to shine brilliantly. Features: -18 count multicolor battery operated LED lights. - Green wire, 4" bulb spacing with 7' string length. - Steady light display. On / Off timer. - Requires 3 AA batteries. - Fewer battery changes with energy efficient LED technology.