Yep, it's your high/low beam switch. Not the most convenient place to have it, the more recent models have it to the left of the clutch pedal which is a bit easier to get to.
I had all sorts of fun the first time I was driving at night & had to simultaneously-
Turn a corner
Change gear
Apply brakes
and dip my high beam coz another car was coming at me. I might also have been turning up the volume on the cd player, not sure and maybe texting with my free hand
It was like the proverbial octopus with a battery up his arse.