Compatibility: Engineered with compatible terminals, this switches is universally suitable for 18V and 21V reciprocating, offering a direct replacement for easy installation without modifications Product Overview: This replacement switches is designed for compatible reciprocating, featuring a built in LED light for clear power situation indication and enhanced safe during operations Compact Design: With a standard size of 62x39mm and a lightweight 38g build, this reciprocating chainsaws switches saves space and adds minimal weight to the tool, ensuring comfortable handling and portability Speed Control: The variable speed driver allows accurate changeable of cutting speed, enabling users to matching the pace to different materials and tasks for optimal cutting comportments Sturdy Construction: Made from sturdy plastics and metal components, the switches features a wear resistant and impacts resistant housing that withstands long term use in demanding workshop environments, Manufacturer: FGDTREE