Product Name: Rheostat; Material: Ceramic, Metal Power Rating: 50 W; Resistance Value: 10 Ohm Mounted Hole Dia: 9.5 mm Bottom Screw Diameter: 3 mm; Bottom Base Diameter: 57 mm Shaft Size: 40 x 6 mm (L x D); Body Size: 63 x 35 mm (Max. D x T) Package Content: 1 x Rheostat Net Weight: 160 g Controls the electrical resistance of a circuit without interrupting the flow of current. The rheostat consists of a ceramic core and a resistive wire wound into a toroidal coil with a wiper axle. Can be used as a light dimmer or motor speed controller, suitable for arc lamps, pumps, fans, blowers, respirators, dental equipment, model trains, and other applications requiring high voltage and current. Note: Lighting conditions and display settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 mm.