Based on this product's specifications, here are some alternatives and similar models
Inverter module No name IPS-500
Summary description:
Inverter module No name IPS-500 is a power conversion device designed to convert DC to AC for use with electrical equipment. Model IPS-500 is intended as a standalone inverter module for integration into systems requiring AC output from a DC source. Suitable for applications such as backup power systems, mobile installations, and equipment that requires AC supply from batteries or DC sources.