Based on this product's specifications, here are some alternatives and similar models
Solar panel Viking 30W — Viking VSP30W 30 W power output
Summary description:
Solar panel Viking 30W (model VSP30W) is a compact photovoltaic module with 30 W nominal power output. Designed for small off-grid systems, charging batteries, lighting, and portable equipment. Provides renewable energy for cabins, boats, RVs, and remote installations. Easy to mount and integrate into 12 V systems to reduce reliance on mains power.