Introduction - If you have any usage issues, please Google them yourself
The three button to the lighting scheme, different modes: when K1 is pressed LED lights flashing mode two: parity when K2 is pressed LED light turns back and forth mode three: when K1, K2, K3 and open LED lights off flashing mode four: when K3 is pressed out of LED. Three modes can be switched freely, but also with pause and reset function.