1. ON/OFF button:The black button is a hidden button(the emergencybutton).Remarks: this button is located in the hole and is used to open the emergency function. (It is closed before leaving the factory. Please turn it on with a pin when you use it. If you forget to turn on the black button when you have installed the LED tube, the green "full "indicator light and the red "charge" indicator light will flash, then you need to press the black button again, in order to open the emergency function.)
2. Test button: If you have installed the led tube, you can press the red button to test whether the emergency function is good. When you press the red test button and hold on, the light will turn on. When you release it, the light will recover to normal condition. Please note:
Must turn on the black button(ON/OFF) before you use the red test button.
3. Full indicator: The green indicator light is on, it means the internal battery is fully charged. (When the city power is cut off and the emergency function is opened, all the signal indicators will turn off .)
4. Charge indicator: When the red signal indicator light is on, it means that the battery is being charged, and it will automatically turn off after being fully charged.