Long press the switch for 3 seconds, red and blue flash in turn; Press again to switch, White light began to work. No matter in any state, long press switch button 3 seconds can be shut down. Charging when the red and green flash in turn or red light, full of green light. This emergency light is used by fixing on the shoulder of led warning safety vest.It can cause person's attention in the distance of 500 meters,so it can protect the safety of people. It use lithium battery-powered and the battery can be recharged. The advantages of it are energy saving and environmental protection.Besides,it also have the function of lighting.
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