Newb question... How Hi beams work?

there are two filaments in the bulb, upper and lower.

 

Yup, 2 filaments, one for the low beam and when you hit the switch the one for the high beam lights up.

 

Unless you have HID Conversion kit. Then the bulb would be pulled into the socket, at least that's what mine does. Retracts in and away from the shield.

 

best way to learn is to go stand in front of your truck and look at hte lights..

have somebody flip them on low, then to high. it'll all be prefectly clear then

 

As 81shark said, At the lights... not INTO the lights...
just a little safety check, there

 

my bad, i should have made the instructions better....kneel down in front of the truck about a foot form the light. look into hte light assembly and then have your friend turn the lights on. i also think you should start with the hi beams.

 

Don't mind the temporary blindness followed by spots. . .that's normal.