Based on this product's specifications, here are some alternatives and similar models
Off-grid solar inverter QOLTEC 3500W model 53864 for standalone photovoltaic systems
Summary description:
Off-grid solar inverter QOLTEC 3500W (model 53864) converts DC from photovoltaic panels or batteries into AC for standalone power systems. Designed for off-grid use, it supports typical household and small commercial loads, provides continuous 3500W output, and protects equipment with built-in safety features. Suitable for remote cabins, backup power, and mobile installations.