A modular lighting system for providing light in a space comprising: a canopy (100; 102; 104; 100E) connectable to a power source; a plurality of horizontal bars (300; 302; 304; 330; 332) each including two parallel bar segments (354, 356) extending in parallel and equidistant from each other; a plurality of hangers (202, 204, 206, 208, 212, 214, 218, 221, 222), including a first set of hangers (202, 204, 206, 214) supporting bars (302, 306) from said canopy (100; 102; 104; 100E) and a second set of hangers (208, 210, 212, 214, 218), each said hangers including a first end disposed between and engaging said bar segments (354, 356); and a plurality of pendants (402, 404, 406, 408, 410) supported by said second set of hangers (208, 210, 212, 214, 218) from said bars (304; 310; 330; 332); wherein said hangers and bars cooperate to provide electric power to said pendants (402, 404, 406, 408, 410) from said canopy, said bar segments (354, 356) including a first bar segment and a second bar segment arranged in a facing relationship with each other to define a space therebetween, characterized in that said bar segments (354, 356) have respective internal surfaces made of an electrically conductive material and segment ends, a first connector being disposed at one respective end of each bar segment (354, 356) and arranged to hold said bar segments (354, 356) together, and a second connector disposed at another respective end of each bar segment (354, 356) and arranged to hold said bar segments (354, 356) together at a preselected distance, each internal surface being formed with a trench engaging an end of one of said hangers (202, 204, 206, 208, 212, 214, 218, 221, 222). a canopy (100; 102; 104; 100E) connectable to a power source; a plurality of horizontal bars (300; 302; 304; 330; 332) each including two parallel bar segments (354, 356) extending in parallel and equidistant from each other; a plurality of hangers (202, 204, 206, 208, 212, 214, 218, 221, 222), including a first set of hangers (202, 204, 206, 214) supporting bars (302, 306) from said canopy (100; 102; 104; 100E) and a second set of hangers (208, 210, 212, 214, 218), each said hangers including a first end disposed between and engaging said bar segments (354, 356); and a plurality of pendants (402, 404, 406, 408, 410) supported by said second set of hangers (208, 210, 212, 214, 218) from said bars (304; 310; 330; 332); wherein said hangers and bars cooperate to provide electric power to said pendants (402, 404, 406, 408, 410) from said canopy, said bar segments (354, 356) including a first bar segment and a second bar segment arranged in a facing relationship with each other to define a space therebetween, characterized in that said bar segments (354, 356) have respective internal surfaces made of an electrically conductive material and segment ends, a first connector being disposed at one respective end of each bar segment (354, 356) and arranged to hold said bar segments (354, 356) together, and a second connector disposed at another respective end of each bar segment (354, 356) and arranged to hold said bar segments (354, 356) together at a preselected distance, each internal surface being formed with a trench engaging an end of one of said hangers (202, 204, 206, 208, 212, 214, 218, 221, 222).