Based on this product's specifications, here are some alternatives and similar models
Solar Panel TP-Link Tapo A200
Summary description:
The TP-Link Tapo Solar Panel provides a rated power of 4.5 W with a minimum output voltage of 5.2 V. It features a versatile tilt angle range of 0 to 360° and is protected with an IP65 rating, ensuring durability against dust and water. The Micro-USB connector allows for easy compatibility with devices. With compact dimensions, it is designed for efficient solar energy collection, making it an ideal accessory for Tapo devices.