1.Water-proof and dust-proof for all-weather races;(Note: uninstall the fan usina this ESC in waters Clean and dry it after the use for avoiding the connectors .) 2.Specially designed for RC car with -upacceleration and linearity features. 3.Compatible with sensorless brushless motor.The strong resistant current capability, heat dissipation 4.Multiple protection features:Low voltage cut-off protection for lithium or battery/Over-heat protection/Throttle signalloss protection/Motor blocked protection. 5. programmed and compatible with pocket-sized card CONNECTIONS. Connet to Battery Connet to motor Connet to Receiver Switch Specifications Model: 150A Burst Current Cont.Current 150A 720A Sensorless Brushless Sensorless Brushless For 4S or 12 cells NiMH: For 4S 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//Monster:40XX-size or smaller motor with the KV Less than 2500 2.Off-road/Bugqy/Monster:42XX-size or smaller For 6S or 18 cells NiMH: For 6S 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//Monster:40XX-size or smaller motor 2.Off-road//Monster:42XX-size or smaller 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 products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.