"Types of lllumination system,

1-Direct Lighting - this method is Lighting system direct is low down 

Indirect lighting refers to fixtures that direct the light upward to bounce off of the walls or ceiling to light the room.  Direct lighting, on the other hand, directs the light downward, directly onto the surface below.

Typically, direct light fixtures provide a better light source for detailed tasks such as cooking or reading.  However, they can also become a source for glare, since the lightbulbs are often exposed and directly in your eyes when you look upward toward the fixture.  Pendant lights and chandeliers that direct light directly onto the surface of a table or countertop are great examples of direct lighting.  They are more often used in kitchens than in dining spaces; kitchens require great task lighting, while dining rooms work best with softer lighting.