Product Name: Rheostat; Material: Ceramic, Metal Power Rating: 50 W; Resistance Value: 10 Ohm Mounted Hole Diameter: 9.5mm / 0.37" Bottom Screw Diameter: 3mm / 0.12"; Bottom Base Diameter: 57mm / 2.3" Shaft Size: 40 x 6mm / 1.6" x 0.24" (L*D); Body Size: 63 x 35mm / 2.5" x 1.4" (Max. D*T) Package Content: 1 x Rheostat Color: As Shown Net Weight: 160g Controls the electrical resistance of a circuit without interrupting the flow of current. The rheostat consists of a ceramic core with a resistive wire wound into a toroid coil and a wiper axle. Commonly used as a light dimmer or motor speed controller, suitable for applications such as lamps, pumps, fans, blowers, respirators, dental equipment, model trains, and other devices requiring variable resistance. Note: Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement error allowance is +/-1-3 cm.