A string of energy efficient LED bulbs on a fine, flexible wire. Each of the LED bulbs is topped with a cap that gives the light a flickering, candle-like effect. With 8m of wire between the transformer and the first bulb, the 240 LED bulbs are spaced 5cm apart, making them suitable for a 4ft to 6ft tall tree. When the low voltage transformer is located inside, the design of the wire makes these lights suitable for indoor or outdoor use. Benefits of LEDs: Energy efficient Consume up to 90% less power than incandescent bulbs Long LED lifespan Extremely durable and built with sturdy components