Feature: 1. The controller housing is made of aluminum alloy, which protects the internal circuits. 2. The controller has good heat dissipation to avoid thermal overload. 3. The soft grip is made of soft rubber material, which makes the grip feel more comfortable and your hands will not be tired for a long time. 4. Simple to install and use. 5. Suitable for electric bicycle, electric tricycle and electric scooter. Specification: Condition: 100% Brand New Item Type: Controller Kit Material: Aluminum Alloy + Rubber Color: As Pictures Shown Controller Box Size: Approx. 7.5 x6x3.5 cm/ 2.9x2.4x1.4 in Rated Power: 250W Rated Voltage: DC24V Undervoltage: 20±0.5A Handle: 1-4V Current: 21±1A Package List: 1 x Controller 1 x Charger 1 x Electric Door Lock 2 x Keys 1 Pair x Grip Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.