Package and mounting
For a rework tech or a low-volume prototype build, Bulk is often easier to handle — you grab one part at a time without de-reeling. For a production line, Bulk means you'll need to plan for tube or tray feeding, or arrange a tape-and-reel conversion if your pick-and-place expects reels. The package itself is a standard through-hole or surface-mount power package typical of the CoolMOS family; the Bulk shipping medium just changes how it arrives at your stockroom.
Where it fits — high-power switching
As a 'HIGH POWER_NEW' device in the CoolMOS series, this MOSFET is designed for high-efficiency, high-frequency switching applications. Typical deployment includes power factor correction (PFC) stages, LLC resonant converters, and server/telecom power supplies where low conduction and switching losses matter. The CoolMOS family is built for hard-switching topologies, so you can push the frequency without the usual trade-off in switching losses.