VFM - Christmas Lights 1000 LED 25m Xmas Tree Lights - Fairy Lights - Festive Bright String Xmas Tree Wedding Fairy Lighting Indoor & Outdoor Mains Operated Multi Function Control Multi-Coloured. INDOOR AND OUTDOOR: With 1000 25 meter multicoloured LED bulbs, these mains operated, low voltage Christmas lights are perfect for creating a Christmasy feel. They can be used indoors or outdoors. MULTI FUNCTION CONTROL AND MEMORY FUNCTION: These plug-in, multicoloured fairy lights have a multi-function control feature and a memory function to retain the last settings used. LOW VOLTAGE: These bright fairy lights are low voltage for added safety when using outside. MULTI PURPOSE: Besides festivities, these lights can be used for weddings and parties. SAFETY: The plug/transformer should always be located indoors and kept away from damp conditions.