Grothe Door Security & Furniture Bell button 632159 - Grothe 62016, The Grothe 62016 Bell button is made of aluminium and operates at 12 V/1.5 A. This durable component is designed for use in doorbell systems. Commonly found at entrances, it enables visitors to alert occupants of their presence. Grothe 62016 Bell Button Aluminium 12V/1.5A Corrosion-Resistant Switch