Function Description：

1. One key control Power on -- long press 3 seconds to turn on, 1 minute to warm up (red light 0.5Hz gradual on and off, unlimited current load) High grade -- unlimited current (red light on) 

Medium -- current not exceeding 400mA output (white light on) Low -- current not exceeding 250mA output (blue light on) 

Shutdown -- Long press for 3 seconds to turn off Automatically jumps to mid-range heating after 1 minute of preheating at power on.  When the button is pressed and popped up, the gear switching, three-color working status indicator {red (high gear) -> white (medium gear) -> blue

(low) -> red (high)...} to switch accordingly. 2. 

2. LED power display During the working process, when the voltage is lower than 8.6V, the working indicator light will flash (2Hz). 

3. Standby hibernation When the whole machine is hibernating and not working, the current is controlled below 100 microamps.