INST Micro LED 100 Lights Battery Operated on 33ft Long Copper Color String Wire (2PCS) Safe to Use: These led fairy lights are battery-operated with low heat emission. It's safe enough to touch the string lights even after long time usage. Waterproof: The copper wires and bulbs of these warm white lights are fully sealed, making the submersible. The battery case is under IP44 waterproof Rating, meeting commonly usage needs but please do not put it under water directly. Energy And Efficient: Coming with waterproof battery case and Powered by 3 x AA batteries (Replaceable but Not included), these copper string lights can work continuously for 60-80 hours. Flexible:easy bending, you can make it to any shape you like to decrorate it 2PCS 100 LED lights, 3 working modes Flexible and sturdy copper wires with 100 bright LED Lights (warm white) on 33ft long Ultra Thin wire with 4 Inches between LED Bulbs and 12 Inches clear cable between wire and battery box The LED used are low heat emission and remains cool after many hours of usage, very safe close to curtain fabric Battery-operated, can be used at anywhere especially some places without power supply Save year after year, inexpensive to operate as they draw so little power, use them all year long with no worries.