There are 2 types of headlight housing your vehicle may have which will heavily determine the characteristics of projection of light. Reflector housing is coated in chrome that is designed to reflect the light shown from the globe outwards. You will notice these styles of housing generally have a cup that sits in front of the bulb that will prevent light from shooting straight forward.
The other is projector housing which is more comnmonly found on more late model cars. This style has a noticable curved lens that sits infront of the light bulb, inside the rest of the build up of the housing is very much the same. The advantages to projector housing is that it shoots a sharper beam allowing more control over focus of light as well as a much clearer cut off line that will prevent light from spraying out in to oncoming road users.
Some vehicles come in variations of the 2 depending on the spec of the model. More entry level specs will generally have reflector housing and as you move up the range they will move into projector. We have also found that in some cases if there is a variation between the 2 types of housing in the same model vehicle that the globes can also differ. For example a certain model with reflector housing might run a H7 globe but the same model built with projector may have a H1. This is important to know when converting your headlights to LED as you will need to check the globe type if there are variations of your specific model.