A movable lighting apparatus (1) for raising natural lawn grass includes a frame (2), main support legs (3) supporting the frame, and casters (4, 5) attached to the lower ends of the main support legs. A movable beam (6) is provided such that it can be advanced and retracted relative to the frame in a left-right direction. A stationary beam (7) is fixed to the frame. A sub-support leg (8) is provided at an advancement direction forward end portion of the movable beam so as to support a distal end of the movable beam when the movable beam is advanced. A caster (9) is attached to the lower end of the sub-support leg. LED lamps (11) are attached to the movable beam and the stationary beam. When the movable beam is retracted, the lower end of the caster of the sub-support leg is moved to a position above the lower ends of the casters of the main support legs.