I activate my headlight washers with a double pull on the windscreen washer. Get little water on windscreen and washes the lights.My only problem was the headlights constantly getting covered in snow. The LED lights didn't generate enough heat to melt the snow. While the headlight washers were effective at clearing the lights, it was frustrating that the washers only came on every few times the windshield washers are used. I wish I could activate the headlight washers separately.