Install a 9 volt battery or a 9 volt rechargeable lithium battery (550mAh or above recommended.
Press the power button twice in succession, can turn on the ultraviolet light. (when firstly press the button,
the LEDO will light for 1 second, Press the button again in this time can turn on the ultraviolet light.
When turn on the ultraviolet light, you can once press the button to control the lighting time.
When LED1 is tuened on, the light works for 5 min and turns off automatically.
When LED2 is tuened on, the light works for 15 min and turns off automatically
When LED3 is tuened on, the light works for 30 min and turns off automatically
When in off state, click the power button to open the LEDO lighting function
Long press the power button for 3 seconds and then the power off
When LEDO flashing means the battery had run out and need to be changed a new battery.
If you have interested in it, please advice any time!