Abstract: An illumination apparatus, including: a light source assembly, a circuit board, a fin assembly, and a fan. The fin assembly includes a plurality of fins arranged at intervals. The plurality of fins each has a first thermal connection end and a second thermal connection end arranged oppositely to each other, as well as a first thermal dissipation end and a second thermal dissipation end arranged oppositely to each other. The light source assembly is in thermal connection with the first thermal connection end, and the circuit board is in thermal connection with the second thermal connection end. The airflow generated by the fan is enabled to pass through the fins and flow out from the first thermal dissipation end and the second thermal dissipation end to drive a heat of the first thermal connection end and the second thermal connection end out of the fin assembly.

Abstract: An illumination apparatus, including: a light source assembly, a circuit board, a fin assembly, and a fan. The fin assembly includes a plurality of fins arranged at intervals. The plurality of fins each has a first thermal connection end and a second thermal connection end arranged oppositely to each other, as well as a first thermal dissipation end and a second thermal dissipation end arranged oppositely to each other. The light source assembly is in thermal connection with the first thermal connection end, and the circuit board is in thermal connection with the second thermal connection end. The airflow generated by the fan is enabled to pass through the fins and flow out from the first thermal dissipation end and the second thermal dissipation end to drive a heat of the first thermal connection end and the second thermal connection end out of the fin assembly.

Abstract: A lighting device is provided and includes: a lamp main housing including a containing cavity, wherein a recess in communication with the containing cavity and a snap-fit structure configured to connect an optical accessory are disposed at an end of the lamp main housing, and a position of the recess corresponds to a position of the snap-fit structure; a heat dissipation device disposed in the containing cavity; a light source in heat-conduction connection with the heat dissipation device, and located inside of the containing cavity or the recess; a front-end housing including a throughout hollow cavity, wherein an end of the front-end housing is disposed on the light source, and another end of the front-end housing faces an outer side of the recess and passes through the recess; wherein light emitted by the light source passes through the hollow cavity of the front-end housing and is emitted outward.