1.Water-proof and dust-proof for all-weather races;(Note:please uninstall the fan before usina this ESC in waters Clean and dry it soon after the use for avoiding the connectors get .) 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 dissipation 4.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 Switch Specifications Model: 150A Current Cont.Current 150A 720A Sensorless Brushless Moto Sensorless Brushless Moto For 4S Lipo or 12 cells NiMH: For 4S Lipo or 12 cells NiMH 1.on-road:40XX-size or smaller motor with the KV Less than 3000 1.on-road:42XX-size or smaller motor withtheKV Less than 3000 Motor Type with the KV Less than 2500 2.Off-road//:40XX-size or smaller motor with the KV Less than 2500 2.Off-road/Bugqy/:42XX-size or smaller moto For 6S Lipo or 18 cells NiMH: For 6S Lipo or 18 cells NiMH 1.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 2500 2. Off-road//:40XX-size or smaller motor 2.Off-road//:42XX-size or smaller moto with the KV Less than 2000. with the KV Less than 2000 Suitable Car 1/8 car 1/8car Resistance 0.00035ohm 0.00030ohm BEC Output 5.8V-6.1V/3A Material: plastic colour: black Package Contents: 1 x Brushless Senseless Speed Controller Only the above package content, other 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.