emergency lightbar: adopts PC material, xenon strobotron, halogen bulb.The colors are red, blue, amber and clear. emergency light bar1. The material adopt PC as domes2. xenon strobotron, halogen bulb.3. The available colors are red, blue, amber and clear.4. The input Voltage is 12V.Lightbar(warning light,emergency light,caution light,police light,traffic light.)