The ornamental design for a speedlite, as shown and described.
FIG. 1 is a front perspective view of a speedlite showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is an enlarged view of portion 9 shown in FIG. 1; and,
FIG. 10 is an enlarged view of portion 10 shown in FIG. 2.
The evenly spaced broken lines depict portions of the speedlite in which the design is embodied that form no part of the claimed design. The dot-dash broken lines encircling an enlargement portion of the design forms no part of the claimed design.