1) Auto identify day or night.
2) Dim light timekeeps 5hrs when light starts working in order to save power. Only microwave motion induction after 5hrs timekeep function.
3) Microwave motion induction for bright light, last 7 seconds after the final trigger.
4) Over charging, over discharging, overcurrent and short circuit.
5) Li-ion battery span life: >500 circles.
6) LED span life: 50,000hrs.
7) Automatically recognize day and night