1. Material: plastic + liquid crystal + metal2. The display uses high-quality materials, light weight, rainproof, strong and durable.3. The LCD display can clearly display the status and data, the backlight allows you to see the screen clearly in a dim environment, the buttons are quick and easy to use4. The controller is brushless, works silently, and is sensitive to the state of the electric bicycle5. Easy to install and use, with a bracket for LCD display, suitable for 22.5mm handlebars6. Suitable for electric bicycles, cars, scooters7. Power: 250W / 350W8. Low voltage protection: 24V-36V=19V / 30V; 36V-48V=30V-41V9. Waterproof: rainproof10. Controller size: about 8.8 x 5.2 x 3 cm / 3.46 x 2.04 x 1.18 inches11. Display size: about 8 x 5 cm/3.15 x 1.97 inches12. Weight: about 332 gramsNote: each cable is marked with a color for different purposes1. Red: positive power supply2. Black: negative pole of power supply3. Yellow: power output4. Brown: lamp positive5. White: lamp negative6. Blue: indicator light signal7. Green: Signal receivingPacking list:LCD monitor x 1Controller x 1Specification: Package Weight One Package Weight 0.35kgs / 0.78lb One Package Size 10cm * 7cm * 5cm / 3.94inch * 2.76inch * 1.97inch Qty per Carton 84 Carton Weight 30.00kgs / 66.14lb Carton Size 43cm * 30cm * 21cm / 16.93inch * 11.81inch * 8.27inch Loading Container 20GP: 984 cartons * 84 pcs = 82656 pcs40HQ: 2285 cartons * 84 pcs = 191940 pcs