Lamp for a Bike

FIG. 1 is a right, front, top perspective view of a lamp for a bike in an embodiment showing my new design; FIG. 2 is a left, rear, bottom perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a top plan view thereof; and, FIG. 8 is a bottom plan view thereof. In the drawings, the broken lines are shown for the purpose of illustrating both parts of the article as well as boundaries of the claim. None of the broken lines form part of the claimed design.