This Police Car Light is special for RC car models, with strobing-blasting Flashing fast-slow Rotating Mode. Features: RC CH3 Controling Mode. Strobing-blasting Flashing Mode. Fast-slow Rotating Mode. Aluminum alloy base. Specification: Item Number: AX-511R The use of voltage:4.8~6V Method of use: the power line is connected to the receiver third channel(CH3) Size: 9*15mm Weight: Approx.1g (0.035 oz) Package information: Package size: 13 * 3.8 * 1.5cm / 5.11 * 1.49 * 0.6in Package weight: 11g / 0.41 oz Package list: 1 * AX-511R Police Car Light