Feature: 1. Luxury and generous shape, double-layer structure; Using large power bulb with higher brightness,; Suitable for kinds of vehicles. 2. [Dome] Imported high-strength PC material. With excellent lustrous and high penetrating-for ability. 3. [Base] Aluminum alloy material with high strength. 4. [Loudspeaker] Install inside or outside at your option. 5. [Rotator] 23W/35W excellent halogen bulb. 6. [Flash alley light ] 23W/25W excellent halogen bulb. 7. [Strobe light ] Imported xenon tube and special controlling circuit by 5-flash mode with high efficiency and more than 10, 000, 000 times for using. Square, rectangular and round shape are optional. 8. [Controlling way] Separate control switch or control switch in matched siren. 9. [LED] LED long-row caution light: With the functions of high brightness, fine stability, low energy consumption, it is the ideal environment-protection product.