Based on this product's specifications, here are some alternatives and similar models
Solar panel EcoFlow 400W Lightweight — 400 W, 39.3 V, Monocrystalline silicon, Ground install, Black, 2509×967×26 mm
Summary description:
EcoFlow 400W Lightweight solar panel is a monocrystalline silicon module delivering 400 W rated power and a nominal voltage of 39.3 V. Designed for ground installation, the panel measures 2509 × 967 × 26 mm and comes in black. Suitable for residential and off-grid systems, it provides efficient energy generation in a compact, lightweight form for solar arrays and portable setups.