FIG. 1 is a perspective view of the fluorescent lamp showing a new design; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a left-side view thereof; FIG. 5 is a right-side view thereof; FIG. 6 is a top plan view thereof; and FIG. 7 is a bottom view thereof; and, FIG. 8 is a perspective view thereof, with the broken lines shown for illustrative purposes only and forming no part of the claimed design.