Lighting systems utilizing interconnected modules for use with grid ceilings and surfaces

A lighting system for a grid ceiling, the grid ceiling including a plurality of T-bar sections interconnected at an intersection region of the grid ceiling, the lighting system comprising:

• a first lighting module having a first end and a second end, the first lighting module including at least one low voltage light source electrically connected to a conductive surface of a first substrate and a first connector disposed on the conductive surface of the first substrate proximate the first end of the first lighting module, the first lighting module being constructed and arranged to be disposed proximate a first T-bar section of the plurality of T-bar sections of the grid ceiling;
• a first connection module including a second substrate and a second connector disposed on a conductive surface of the second substrate, the first connection module being configured to electrically and mechanically couple to the second end of the first lighting module to transfer power to or from the first lighting module, the first connection module being constructed and arranged to be disposed proximate the intersection region of the grid ceiling;
• a first diffuser constructed and arranged to cover the first lighting module and diffuse light emanating from the at least one low voltage light source, wherein the first diffuser has a first attachment clip and a second attachment clip, the first and second attachment clips being configured to secure the first diffuser to a horizontal section of the first T-bar section;
• and
• a second diffuser constructed and arranged to cover the first connection module, wherein the second diffuser includes a plurality of attachment clips configured to secure the second diffuser to at least the first T-bar section.