... approval *Red,blue,amber,white *lightbar only/2 speakers Head truck led lightbar with 2 speakers*Length:1.6 meter*ISO,CE approval ... *Red,blue,amber,white*lightbar only/with 2 speakers in the middle Lightbar will be used in Emergency Vehicle.such as Police car ... means the superior sealed function. The base materialis aluminum. The working temperature can be -45°C to 50°C.Reliable control ...