Product Name : Rheostat; Material : Ceramic, Metal Power Rating : 50 W; Resistance Value : 10 Ohm Mounted Hole Dia : 9.5mm/ 0.37 inch Bottom Screw Diameter : 3mm/ 0.12 inch ; Bottom Base Diameter : 57mm/ 2.3 inch Shaft Size : 40 x 6mm/ 1.6 inch x 0.24 inch (L*D); Body Size : 63 x 35mm/ 2.5 inch x 1.4 inch (Max. D*T) Color: As Shown Net Weight: 160g / pcs Control the electrical resistance of a circuit without interrupting the flow of current. The rheostat is consisted of ceramic core and a resistive wire wrapped to form a toroid coil with a wiper axle. Can be used widely as light dimmers and motor speed control, is applicable for arc lamps, pumps, fans and blowers, respirators, dental and model trains or other applications that require high voltage and current. Package Content: 2 x Rheostat Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.