Super smooth, accurate and programmable throttle linearity and throttle response. Over temperature protection ,low voltage cut off protection ,signal loss protection and so on. Strong SBEC 8A/5V continuous and peak to 10A. Supporting high RPM motors and programmable by programming card and transmitter . High efficiency with low resistance and low heat MOSFET and CPU. Features: 1. Adopting new generation craft on the MOSFET, low heat generation, withstand large current instantly, and high reliability. 2. Adopting high performance 32 bit microprocessor, stronger computing ability and faster running speed. 3. The ESC is waterproof and glued, and the flat water-cooling design ensures efficient heat dissipation. 4. Super smooth start-up and accurate throttle linearity make the ESC suitable for all kinds of RC boat models. 5. The ESC has two running modes for different applications:“Forward Only” and “Forward and Backward”. 6. Higher driving efficiency and more energy-saving. 7. Adjustable SBEC 5V/6V output voltage provides more powerful power to the servo. (40A/50A/60A/80A/100A have SBEC adjustable) 8. Multiple protections: start-up, over-heat, low-voltage cutoff, signal loss, phase loss. 9. Support high RPM motors, and compatible with most motors in the market. 10. Fully programmable via ZTW new programming box G2. Model: Shark 20A SBEC G2 Cont./Burst Current(A): 20A A Battery cell NiXXLipo: 5-12NC -4Lipo BEC Output: 5.5V/4A Size(L*W*H): 62*30*9mm Weight(g): 30 Model: Shark 30A SBEC G2 Cont./Burst Current(A): 30A A Battery cell NiXXLipo: 5-12NC -4Lipo BEC Output: 5.5V/4A Size(L*W*H): 62*30*9mm Weight(g): 31 Model: Shark 40A SBEC G2 Cont./Burst Current(A): 40A-A Battery cell NiXXLipo: 5-12NC -4Lipo BEC Output: 5V/6V 4A Size(L*W*H): 75*32*9 Weight(g): 40 Model: Shark 50A SBEC G2 Cont./Burst Current(A): 50A5A Battery cell NiXXLipo: 5-12NC -4Lipo BEC Output: 5V/6V 4A Size(L*W*H): 75*32*9 Weight(g): 41 Model: Shark 60A SBEC G2 Cont./Burst Current(A): 60A80A Battery cell NiXXLipo: 5-18NC -6Lipo BEC Output: 5V/6V 8A Size(L*W*H): 72*40*12.5 Weight(g): 70 Model: Shark 80A SBEC G2 Cont./Burst Current(A): 80A@A Battery cell NiXXLipo: 5-18NC -6Lipo BEC Output: 5V/6V 8A Size(L*W*H): 96*43.5*13 Weight(g): 90 Model: Shark 100A SBEC G2 Cont./Burst Current(A): 100APA Battery cell NiXXLipo: 5-18NC -6Lipo BEC Output: 5V/6V 8A Size(L*W*H): 96*43.5*13 Weight(g): 100