Preferably at night but really it's up to you on whether you want to see or not XD hope that helps
They stay on cause they runnin off the battery. there should be a car headlights switch somewhere by your spedometer stuff...
Yes
Low beams are the headlights when they are dipped. Used to light up the road just in front of you and biased towards the kerb nearest you. They also allow you to be seen clearly, but without blinding oncoming vehicles or those in front of you. When there is no other traffic to blind, the headlights should be switched to main beam, to give you the best view ahead and early warning of dangers. A blue light on the dashboard warns you when your headlights are on Main beam and blinding. If you have your headlights switched on and there is NO blue light, then your headlights are on Low beam.
on what vehicle?
$94
Headlights in the US are generally positive switched, because the best source of return current is vehicle ground, and US cars are generally a positive voltage system. However, if Daytime Running Lights (DRL) are employed, often the high beams are wired in series, so as to illuminate at about one quarter power, so the concept of which end is switched becomes vague. Usually, one is positive switched, and the other is positive switched between switched positive and the negative side of the first.
How far should headlights shine?
Brake lights should NOT be effected by the headlights. Brake light function is completely independent of the headlights. Assuming you are not refering to the tail lights, or marker lights, which are supposed to come when the head lights are turned on. Not having brake lights when the head lights are on is a big safety problem and should be corrected.
When it is raining during the day you should always keep your headlights on.
What Should You Do - 2003 Deer in the Headlights was released on: USA: 14 August 2004
Firstly, turn the ignition on but don't start the engine, then turn the headlights on, then off, then turn them back on, then off again. (so twice on, twice off) the car should beep at you twice indicating this function has been switched on. To switch off, repeat the same steps above and the car will only beep once.
Perhaps they are already switched on at the switches inside the car.