Waterproof and dustproof design for all-weather performance. (Note: Please uninstall the fan before using this ESC in water. Clean and dry it immediately after use to prevent connector corrosion.) Specially designed for RC cars with excellent startup acceleration and linear throttle response. Compatible with sensorless brushless motors. High current capacity and efficient heat dissipation. Multiple protection features: Low voltage cutoff for lithium or nickel batteries, over-heat protection, throttle signal loss protection, and motor blockage protection. Easy programming and compatible with pocket-sized programming card. Connections: Battery, motor, receiver, and switch. Specifications: Model: 150A Continuous Current: 150A Burst Current: 720A Motor Type: Sensorless Brushless Motor Compatible Battery: 4S Lipo or 12-cell NiMH; 6S Lipo or 18-cell NiMH Recommended Motors: - For 4S: On-road – 42XX-size or smaller motor with KV less than 3000; Off-road – 42XX-size or smaller motor with KV less than 2500 - For 6S: On-road – 42XX-size or smaller motor with KV less than 2500; Off-road – 42XX-size or smaller motor with KV less than 2000 Suitable for: 1/8 scale cars Resistance: 0.00030 ohm BEC Output: 5.8V–6.1V / 3A Material: Plastic Color: Black Package Contents: 1 x Brushless Speed Controller Note: Light reflection and different display settings may cause slight color variations between the product image and the actual item.