The RLS450 has a maximum intensity of 600 lumens. The lower settings, at 270 and 80 lumens, are well chosen for use in special situations. In addition to a lanyard and belt clip, the Walther RLS450 has a removable combat ring with a tripod socket, allowing it to be fixed to a tripod or used along with a handgun. The flashlight comes with a wide range of accessories, including spare parts, wear parts and a holster.

The Walther RLS lamps comply with the demands for dust and water resistance according to IPX7. Each light comes with an accessory clip, a lanyard, a replacement switch cap and a seal.