Specification: 110*110mm Material: Plastic shell with reflective pieces with LED lights, flashing permanently. shell material:PP window material:pc power:solar cell(120mW,2.5V/48mA) power storage:Ni-MH rechargeable battery light:2 supper-bright LEDs for each side light mode:flash light color:Available with amber,blue,green,red and white view distance:more than 800m working mode:start when night falls or with onset of inclement weather automatically working time:over 150hrs when fully charged life time:5yrs heat resistance:-30℃~70℃