Features: No delay in lighting, much safer, prevent the rear-end collision danger. Adopt big and stable chip. High quality and super-bright LED bulb. This energy-saving LED light bulb features low power consumption, long service life, antidust. No delay in lighting, much safer, prevent the rear-end collision danger. Waterproof & sun-proof design. Easy installation, just attach the light on the roof & plug the cigarette-lighter. Specifications: Material:Plastic Size:Approx.35.5x9.7x9.5cm/13.97x3.81x3.74inch Color:White/Yellow Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Taxi Roof Top Sign Light