The Anysew High-efficiency 1300W Iron ES-300L is a gravity-feed industrial steam iron, suitable for commercial settings like garment manufacturing and laundries, as well as for demanding domestic use. It comes with an external 4-liter water tank, which provides a continuous flow of steam for long ironing sessions. The "L" in the model name indicates a "Large" baseplate. 
Key features
Gravity feed system: Provides a constant and smooth flow of steam for efficient wrinkle removal.
Powerful steam output: Penetrates deep into fabric fibers, allowing for quick and effortless wrinkle and crease removal.
Adjustable temperature control: Allows you to set the perfect heat level for various fabric types.
Stainless-steel soleplate: Delivers even heat distribution and glides smoothly over different fabrics.
Ergonomic handle: Designed for comfort and reduces fatigue during extended ironing sessions.
Durable construction: Built with high-quality materials for long-term performance. 
Specifications
According to a product page on Anysew.com, the AS-300L (a closely related model) has the following specifications: 
Voltage: 220v / 110v
Power: 1300w
Weight: 3kg
Base plate size: 224 x 138mm
Base material: Hard Alumina or Non-stick paint