# `TiDB Lightning` Overview

+ `TiDB Lightning` is a tool used for importing data at `TB` scale to `TiDB` clusters
+ Following import file formats are supported:
  + Files exported by `Dumpling`
  + `CSV` files
  + `Apache Parquet` files generated by `Amazon Aurora`
+ Import data from:
  + Local disk
  + `Amazon S3`
  + `Google Cloud Storage`

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You can't generate a parquet file with your `Python` program and read it with `Lightning`. It must be an `Aurora`, `parquet` backup file.