1.powerful signal light/Light trackers/Lite tracker/directional light 2.color: red, green, blue, yellow, white ... 3.AAA battery ZW4100 powerful signal light/Light trackers/Lite tracker/directional light Certification:GB Code:Ex ia II CT4GB ... hours without stop..It can be carried by hanging, buckle, bundle, or magnetic absorption..Ambient environment: -60°C-150°C..Lighting ...