1.Water-proof and dust-proof for all-weather races;(Note:please uninstall the coolina fan before usina this ESC in waters Clean and dry it soon after the use for avoiding the connectors get rusty.)2.Specially designed for RC car with excellent start-upacceleration and linearity features.3.Compatible with sensorless brushless motor.The strong resistant current capability,excellent heat dissipation4.Multiple protection features:Low voltage cut-off protection for lithium or nickel battery/Over-heat protection/Throttle signalloss protection/Motor blocked protection.5.Easily programmed and compatible with pocket-sized program card CONNECTIONS. Connet to Battery Connet to motor Connet to Receiver SwitchSpecificationsModel: 120ABurst Current Cont.Current 120A 600ASensorless Brushless Sensorless Brushless For 4S or 12 cells NiMH: For 4S or 12 cells NiMH1.on-road:40XX-size or smaller motor with the KV Less than 3000 1.on-road:42XX-size or smaller motor withtheKV Less than 3000Motor Type with the KV Less than 25002.Off-road/Buggy/Monster:40XX-size or smaller motor with the KV Less than 25002.Off-road/Bugqy/Monster:42XX-size or smaller For 6S or 18 cells NiMH: For 6S or 18 cells NiMH1.On-road:40XX-size or smaller motor with the KV Less than 2500 1.On-road:42XX-size or smaller motor with theKV Less than 25002. Off-road/Buggy/Monster:40XX-size or smaller motor 2.Off-road/Buggy/Monster:42XX-size or smaller with the KV Less than 2000. with the KV Less than 2000Suitable Car 1/8 car 1/8carResistance 0.00035ohm 0.00030ohmBEC Output 5.8V-6.1V/3AMaterial: plasticcolour: blackPackage Contents:1 x Brushless Senseless Speed ControllerOnly the above package content, other products are not included.Note: Light reflection 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.