Product Name : Rheostat<br> Control the electrical resistance of a circuit without interrupting the flow of current.<br> The rheostat is consisted of ceramic core and a resistive wire wrapped to form a toroid coil with a wiper axle.<br> Can be used widely as light dimmers and motor speed control, is applicable for arc , pumps, fans and blowers, respirators, dental and model trains or other applications that require high voltage and current.<br> Material : Ceramic, Metal<br> Color : As Shown<br> Power Rating : 100 W<br> Resistance Value : 100 Ohm<br> Mounted Hole Dia : 9.5mm/ 0.37"<br> Bottom Screw Diameter : 2.5mm/ 0.1"<br> Bottom Base Diameter : 72mm/ 2.8"<br> Shaft Size : 37 x 6mm/ 1.5" x 0.24"(L*D)<br> Body Size : 80 x 36mm/ 1.3" x 1.4" (Max.D*)<br> Net Weight : 250g<br> Package Content :<br> 1 x Rheostat<br> Note:Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.