Welcome to our shop! Introducing our programmable smart bulb LED string lights for Christmas tree. Each LED bulb on the unique Christmas light string is a fully programmable smart bulb. With our app control feature, you can choose pre-made lighting designs and animations, or even write your own designs to match the colors of your favorite sports team, create unique animations, and more. Controlling the lights is easy and convenient, as all lights can be controlled remotely through apps available on the for iOS App Store. The quick setup process is simple and only takes a little time, thanks to Bluetooth pairing. Once set up, you can use your local home/office WiFi to connect the lights, eliminating the need to establish a connection every time you use them. Our LED string lights are also weatherproof, with an IP65 protection grade, making them suitable for both indoor and outdoor use. Specifications:- Name: LED string lights for Christmas tree- Protection level: IP65- Luminous flux: 6 lm- Color temperature: 3000 K- Input voltage: 5 V- Size: 5M 50LED/10M 100LED/20M 200LED (optional)Features:- More than 16 million colors- 29 different dynamic modes- Sync to music- Timer function- Brightness/speed control from 1%-100%- Custom create your great led moon lightingIncluded in the package:- 1 set of LED string lights100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service. Thank you for choosing our programmable smart bulb LED string lights. Enjoy the festive season with beautiful and customizable lighting!