To switch on/off the headlights, there will be a lever on the right of the steering wheel.
How to turn it on:
Hold the knob at the tip of the lever
Turn it up (clockwise) twice
How to turn it off:
Hold the knob at the tip of the lever
Turn it down (anti-clockwise) twice
How do I use the high-beam?
Pull the right lever towards you, it should turn on the high-beam light