Professional waterproof structure, durable to use. 150A dual battery connector. BEC output can be adjusted high and low voltage. The strong resistant current capability, excellent heat dissipation. Suitable for 1/8 RC car. 4076 2000KV Brushless Motor. Designed with 4-stage 12-slot high-torque motor. CNC processing steel billet and 6061-T6 aluminum heat sink, secondary oxidation treatment, high-end and fine appearance. High purity copper coil for maximum efficiency, temperature resistance up to 180-200 °. High-speed and ultra-durable sealed bearings, low friction, low noise, high precision and long-lasting use. Use M3 + M4 screws for multiple installation styles. High balance explosion-proof rotor, high smoothness, high accuracy and high speed, dynamic balance is controlled within 10mg, and can be disassembled and replaced. Ultra-thin silicon steel sheet has excellent performance, high magnetic permeability and high silicon content, good insulation and heat resistance. 4.0mm gold-plated joints and 5.0mm two shafts, suitable for 1/8 brushless models. Continuous / maximum current: 150A/720A. Battery: 36 cells Lipo, 918 cells NiMH. BEC Output: 6.1or7.4V/3A (switch mode). For4S Lipo or12cells NiMH. On-road: 42XX-size or smaller motor with the KV. Off-road / Buggy / Monster: 40XX-size or smaller motor with the KV. For6S Lipo or18cells NiMH. 1x Motor with ESC.