The Premier 2000 LED Multi-Action Treebrights - Warm White are super bright energy-efficient LED lights that can be used indoors and outdoors. They come with 5m of cable before the first bulb and 50m of lights. These lights provide four times more light per metre than regular lights with a 2.5cm bulb spacing, and the 8 programmable settings with timer function ensure the most festive Christmas lighting effect. They are also available in white, warm white, and rainbow.