Features: High quality Thumb Throttle for electric bicycles and scooters This product fits most electric bikes with hall sensor controller Can be assembled on any 36V electric bicycle or scooter Thumb Throttle, Battery power indicator bar and a power switch - all in one product Easy installation 6 Cables Throttle Wiring: Red: +5V Black: -Negative White: Signal Green: Battery voltage indicator Yellow: +Positive of switch Brown: -Negative of switch Specifications: Model: FT15DXD (36V) Effiency: 98% Working voltage: Throttle for DC 1-4.2V Working current: for DC 350 mAh Main Color: Black Battery LED indicator: 3 levels (Full-Half-Empty) Function: One red switch button (Can be used as the headlight Switch or Power Switch), three level battery indicator Cable Length: 150cm Size: 3.5x4.3x7cm/1.38x1.69x2.76" Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Contents: 1 x Thumb Throttle 1 Set x Accessories