Based on this product's specifications, here are some alternatives and similar models
Connection module Scangrip for Hikoki 18 V / 20 V, black, 110 g, 110.1×76.1 mm
Summary description:
Connection module by Scangrip for compatible HIKOKI 18 V and 20 V systems. Compact module in black with dimensions 110.1 × 76.1 mm and weight 110 g. Designed to link Scangrip tools or accessories to Hikoki battery platforms, it provides mechanical and electrical connectivity for portable lighting or tool setups. Supplied as a single-piece pack with a 3-year warranty.