The Light Source Mega-Baby Complete 24" Sidearm is a fully assembled extension arm system designed to position lighting fixtures, speakers, or other equipment at a distance from a primary vertical stand or mounting point. The "Complete" designation indicates it is supplied as a ready-to-use unit, comprising a 24-inch long black anodized aluminum tube (the arm) with integrated mounting hardware attached at both ends. One end terminates in a standard female pipe receptacle, typically with a 5/8-inch diameter internal thread, allowing it to be screwed directly onto the top of a light stand or a compatible wall mount. The opposite end features a robust clamp or a male thread, designed to securely receive a fixture.

The sidearm's primary function is to create an offset, enabling equipment to be placed precisely where needed—such as over a stage, to the side of a speaker stand to avoid obstruction, or around physical obstacles. The 24-inch length provides a substantial yet manageable reach, offering flexibility in positioning without introducing excessive leverage that could compromise the stability of the main stand. The black anodized finish on the aluminum provides a durable, corrosion-resistant surface that maintains a low-visibility, professional appearance and helps dissipate heat.

This component is valued for its straightforward, out-of-the-box usability. As a complete assembly, it eliminates the need for the user to source and attach separate clamps or adapters, ensuring all connections are properly matched and rated for the intended load. The rigidity of the aluminum tube ensures minimal flex or bounce when weight is applied at the end, maintaining the fixture's precise aim. It is an essential tool for lighting directors, audio engineers, and videographers who require precise control over the placement of their gear, effectively turning a single stand into a versatile and multi-functional support system.