LED Balloon LightsThe lights are CE certified. 3 eco-friendly 1.5V LR44 batteries in each LED light, works 3-48 hours. Optimal brightness that lasts 3 - 4 hours. (Battery included and replaceable with 15 extra batteries). Waterproof LED LightsEach LED light is equipped with a waterproof rubber strip for indoor and outdoor. LED LightsEach LED light has a hook on the bottom and can be tied on a cord and hung anywhere. Suitable for paper lanterns, lanterns, balloons, etc. Create a very romantic atmosphere. Beautiful decorationSuitable for paper lanterns, lanterns, balloons, parties, concerts, wedding, birthday, carnival, Christmas, Halloween, etc. Create a very romantic atmosphere. Scope of delivery30 x LED balloon lights (batteries included); 15 additional batteries. - Features: Materials: eco-friendly plastic + chrome. Light color: Warm white (not flashing). Dimensions: 3.5 x 1.2 cm. Weight: approx. 2 - 4 g. Battery: 3 eco-friendly AG3 batteries (included and replaceable). Quantity: 30 pieces. 3 button cells: 4.5V. Instructions: 1. Please disassemble the LED light cap. 2. Please remove the insulating tape. 3. Turn the cap until the lamp lights up. If you want to turn off the light, push back the insulating strip and the light will be off. By turning the lid, the lights can be switched on or off. Scope of delivery: 30 x LED balloon lights (batteries included). 15 x additional batteries. Note: Please remove the insulation strip before lighting the lamp. - We offer you the best and most suitable solution.