These flickering effect Firefly Lights have been designed specifically for trees and are perfect for lighting up the inside or outside your home during the festive season. The Firefly is a handmade light set where every other bulb gently flickers, to give a shimmering candle-like effect. As well as this, a more compact bulb spacing gives the look and feel that the tree has been professionally lit. With 600 white LEDs spaced 2.6cm apart, the LED lights provide consistent and uniform brightness at all angles. These 15.5m Christmas tree lights will illuminate a 5ft tree. The long-life energy efficient white LEDs are fitted with concave heads for consistent and uniform brightness at all angles and with a discreet green cable blend seamlessly into the green foliage of a Christmas tree, they are sure to look great on your tree.The lights are constructed from a corrosion-resistant copper wire core, which means they will last year-after-year. The total length of the fairy lights is 28.9-metres. The string lights measure 15.5m in length with 10 metres between the plug and the first light.