Suzhou UnionTech Imp. & Exp. Co., Ltd is a specialized enterprise in researching, designing, manufacturing and supplying security products. The range of our products includes Lightbars, Warning Lights, Siren Amplifiers, & Speakers, etc. We have the strong technologic capability, advanced equipment and skillful technicians and employees. We have already researched and developed various Lightbars, Warning Lights and Siren Amplifiers, which covers more than 4 series with 12 kinds, and 58 different models.