1.bright color,high visibility 2.good heat-resistant 3.not pollute the environment 4. ... material:Aluminum Cell:1.2V/600mAH NI-MH, resistance to high temperature cell.Work time:One fully charged 8hours,can work ... not pollute the environment.4.High warning effect, used wafer chip from Taiwan, active luminous, high luminance, dynamic warning.5.Stable property, designed by ...