MC951H/AHeli:(for 450 size heli )Anti spark circuit Airplane:(Under maximun current 45A motor can select) Li-po 2-6cell •Functions : forward stop (brake / reverse) / Governor ON/OFF function •Maximum current(peak) : 50A(60A5seconds) •Operating voltage : 6V-25V •Dimensions : 50x25x10mm •Weight : 52g Heli governor mode included