ITEM NAME:320A High Voltage Brushed ESC Speed Controller for RC Off-road Car Truck W7H5 320A High Voltage Brushed ESC Speed Controller for RC Off-road Car Truck W7H5 Operating system : forward, reverse, and brake Power range : 7.2V-16V Input voltage(advise): 6-12 cells NiMH/NiCd or 2-4 cells LiPo. BEC : 5.6V 2A Product Dimensions:4.7*4.2*3.7 cm Output current : forward 320A Out of control protection: yes Low voltage protection: yes Over-voltage protection: yes Heat sink: yes Fan: yes The interference yes for 540 motor (dual motor or single motor) above. Package including:1 x 320A high voltage esc 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.