Patent ID: 8057057

Claim:
A light unit, comprising: a housing including a first side, a second side opposite to the first side, a third side, and a fourth side opposite to the third side; a first printed circuit board arranged in the housing in a first direction from the first side to the second side, wherein the first printed circuit board includes a first connector arranged adjacent to the first side of the housing; a second printed circuit board arranged in the housing in the first direction and adjacent to the first printed circuit board, wherein the second printed circuit board includes a second connector arranged adjacent to the second side of the housing; a third printed circuit board arranged in the housing in the first direction and adjacent to the second printed circuit board, wherein the third printed circuit board includes a third connector arranged adjacent to the first side of the housing; and light emitting diodes mounted on the first, second and third printed circuit boards, wherein, in the first printed circuit board, the first connector and the light emitting diodes on the first printed circuit board are disposed in a first line, and the light emitting diodes on the first printed circuit board are arranged between the first connector and the second side, wherein, in the second printed circuit board, the second connector and the light emitting diodes on the second printed circuit board are disposed in a second line, and the light emitting diodes on the second printed circuit board are arranged between the second connector and the first side, wherein, in the third printed circuit board, the third connector and the light emitting diodes on the third printed circuit board are disposed in a third line, and the light emitting diodes on the third printed circuit board are arranged between the third connector and the second side, and wherein there is only one connector on each printed circuit board and a connector of an adjacent printed circuit board is alternately and oppositely positioned.