First,the using life exceed 30000-60000 hours. Second,AC,DC,both available. Third,adopting ultrahigh brightness LED. The lamp-house of JS series LED caution lights adopt ultrahigh brightness LED,higher irradiancy intensity,the using life exceed 30000-60000 hours.Flash frequency 60±10%/minute.AC,DC,both available,flash,hummer.Our company can provide you with a various of products in different ...