Abstract: An LED bulb assembly includes a pinion, a plurality of LEDs, an upper heat sink, and a lower base. The plurality of LEDs are configured or arranged around a surface of the pinion, such that the optical axis of the LEDs face outward. An upper heat sink may be configured to provide heat transfer for the LEDs and pinion. The lower base may be configured to provide a connection to the pinion and an upper heat sink. In embodiments, one or more optical elements (e.g., lenses) or LED covers may be included. Further, for some embodiments, the upper heat sink may be upwardly offset a separation distance from an upper surface of the pinion, and may be configured to improve air flow to the upper heat sink.