Another feature is that if you pull back on the handle it lights both your low and high beams simultaneously. This is especially helpful if some discourteous oaf in opposing traffic lets his hign beams glare in YOUR face. Pull back on the control, and your lights will melt his eyeballs and leave only smouldering, smoking craters where they once were. Just trying to be helpful.
I prefer rockets. I really should mount a tray on my car.