Cole & Bright LED string lights are a very attractive and cost effective way to light up an area in your garden. The lights are solar powered and they also have a battery back up. This ensures that the lights work all year round. They have a built in timer that switches the lights on at dusk and off again after 8 hours. There are three modes that the lights work in - constant, flashing and twinkle. The 100 lights in the set have a total cable length of 11.89 metres and there is also a 1m lead cable attached from the included solar panel to the first LED light.