1、Waterproof and dust-proof ESC, having long service time. 2、Special designed for RC models with excellent start, acceleration and linearity. 3、Compatible with sensorless brushless motor. 4、Strong resistance to current and good heat dissipation performance. 5、Multiple protection functions: low-voltage cut-off protection/overheat protection technical signal loss protection/motor blocking protection for lithium or nickel batteries. Features: Waterproof and dust-proof ESC, having long service time. Special designed for RC models with excellent start, acceleration and linearity. Compatible with sensorless brushless motor. Strong resistance to current and good heat dissipation performance. Easy to program and compatible with pocket program card. Specifications: Condition: 100% Brand New Brand: GTSKYTENRC Name: 45A ESC Cont.Current/Burst Current: 45A / 240A Motor type: sensorless brushless motor For 2S Lipo or 6-cell NiMH: 1. Highway: motor 3650 size or smaller, KV <5600KV 2. Cross-country/off-road vehicle: 3660 or smaller motor, KV <3800KV For 3S Lipo or 9cell NiMH: 1. Highway: motor 3660 size or smaller, KV <3800KV 2. Cross-country/off-road vehicle: 3660 or smaller motor, KV <2600KV Applicable model: 1/10 RC car Resistance: 0.0014 ohm Batteries: 2-3S Lipo / 4-9Cells NiMH BEC output: 5.8v / 3A (analog mode) Size/Weight: 51.5x38.5x38.5mm / 76g Package List: 1 * ESC 1 * Manual