Feature: 1. COMPATIBILITY: The doorbell solar panel is fully compatible with for Google Nest Doorbell (Battery), for Video Doorbell 2 (not for 2nd), for Doorbell 3, for Video Doorbell 3+, for Doorbell 4 Plus, for Doorbell 2K Camera 2. SAVE TIME AND EFFORT: Our solar panel helps you to charge your doorbell without the huge hassle of removing it every few days. There is no wall outlet near your doorbell or you don't plan to wire your doorbell, solar panel is the best solution. It's a great and smart addition to your doorbell. 3. IP66 WATERPROOF: The doorbell solar panel charger is IP66 waterproof and the solar panel is well made to withstand extreme weather conditions such as rain, snow, thunderstorms and more. Working temperature from ‑5℉ to 120℉. 4. FLEXIBLE AND CONVENIENT: 9.8ft charging cable allows the solar panel to be mounted in a sunny location. 360° adjustable mount allows the doorbell solar charger to be adjusted to a sunny direction. 5. EASY TO INSTALL: The 10W solar panel is easy to install, you just need to punch holes on the wall to install the solar panel and then connect the charging cable to the doorbell, it can be fixed on the wall, roof, patio or other suitable location to ensure stability and security. Specification: Item Type: Solar Panel Camera Charger Product Material: ABS, Monocrystalline Silicon Power: 10W Working Voltage: 5V Open Circuit Voltage: 6V Output Current: 600mA Maximum Charging Cable Length: 3 Meter/9.8ft Compatible Doorbells: for Google Nest, for Doorbell 2K Camera, for Video Doorbell 2, for Doorbell 3, for Video Doorbell 3+, for Doorbell 4 Plus. Package List: 1 x Solar Panel1 x Base3 x Screws3 x Expansion Tube Note: All data are measured manually, and there are certain errors in the measurement results.