Festive Set of 500 Multifunction Cool White Sparkle Indoor/Outdoor Christmas Tree Lights Running cost 1p per hour* *Based on UK Price Guarantee (October 2022), correct of 5/11/22, electricity rate of 34.00 pence per kWh. Subject to change in energy tariffs. From indoor grottos to outdoor winter wonderlands, this Festive Set of 500 Multifunction Christmas Tree Lights is perfect for adding a magic sparkle to your festive display. Ideal for 7 and 8-foot trees, each bulb has a beautiful cool white glow that works well in classic and contemporary spaces alike. The clever addition of dual power sources (battery or mains) also means you’re not restricted to the length of the power cable, so it can also be used to light up the front of your home, or even be wound around the spindles of your banister. Fitted with a timer, you won’t need to worry if you forget to switch them off at bedtime. Bulb count:500 Material Content: Acrylic, Copper, PVC, ABS, Mild Steel Cool white LEDS Lit length:25m Made to fit 7 & 8ft tree Indoor/Outdoor Use- Transformer to stay inside