Feature 1Aluminum Alloy: The controller housing is made of premium aluminum alloy with a notched design, which protects the internal circuitry from thermal overload due to its great heat dissipation. 2Flame Retardant: This brushless controller has 48V voltage and 350W power, all use high temperature and flame retardant wire, more safe and durable. 3Safe to Use: Stable and reliable performance, with undervoltage protection, overcurrent protection, stall protection and other protection functions, to ensure the use of electric bikes and safety. 4Stable Speed: The brushless controller can provide stable speed as well as sensitive control of braking and direction changes, easy to install and extend the service life of your bike. 5Applications: Suitable for DIY electric bike, electric scooter, electric tricycle, etc. Easy to maintain, can greatly improves the fun of riding, suitable for cyclists who like challenges.Item Type: Brushless ControllerMaterial: Aluminum alloyWeight: Approx. 280g/9.9ozVoltage: 48VPower: 350W .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Brushless Controller