UNIQUE FEATURES :
4 level of dimming mode:
1st press : 100% (Full brightness)
2nd press : 50% (Half brightness)
3rd press : 25% (Quarter brightness)
4th press : OFF (Zero brightness)
Enter continuous dimming mode :
Press key for 2 seconds, now you can adjust brightness between 0% to 100%.
In continuous dimming mode, a single press of key will make LED switch between ON and OFF, at the adjusted brightness.
Exit continuous dimming mode :
Press key twice within a second to exit from continuous dimming mode.