SCR-BL Brush Motor Specific Speed Controller ● Reverse Power, Start Power, Drack Brake, Battery Type Selectable in Setting Mode ● Li-po Battery Protection (Default Set) NiCd / NiMH Input Voltage 7.4V ~ 8.4V ● Continuous Maximum Current 70A Instant Max Current 500A ● Size 33.4mm x 36mm x 3.2mm ● mm Weight: 7 mm 0 g ● Usable Brushes Motor turn count: 15 turns or higher (7.2 V); Pulse frequency: 1 khz