Aquaculture lighting devices and methods
A lighting assembly for enhancing the growth of aquatic life in an ecosystem and method of enhancing the growth of aquatic life in such an ecosystem. The assembly includes a vessel submerged within water of the ecosystem. A substrate is disposed within and surrounded by the vessel and provides electronics to provide a conditioned current to a plurality of light emitting diodes also contained on the substrate. The light emitting diodes emit light within the water of the ecosystem that provides for growth, not only in a larger volume of the ecosystem, but in addition enhances the growth of the aquatic life.
1. A lighting assembly comprising:
a vessel submerged within water of an ecosystem;
a heat sink at least partially disposed through the vessel;
a first substrate disposed within the vessel and having driving circuitry thereon;
at least one lighting device electrically connected to the driving circuitry that emits light within the water of the ecosystem; and
wherein heat from the circuitry is conveyed through the heat sink to the water;
wherein the heat sink comprises a primary heat sink disposed within the vessel that is engaged by the substrate to provide a thermal path from the substrate to the primary heat sink; and
wherein the heat sink further comprises a secondary heat sink extending from the primary heat sink away from the vessel.
2. The lighting assembly of claim 1 wherein the diameter of the secondary heat sink is greater than the diameter of the vessel.
3. The lighting assembly of claim 2 wherein the vessel is sealingly connected within the secondary heat sink.
4. The lighting assembly of claim 1 wherein the primary heat sink and secondary heat sink are of one piece construction.
5. The lighting assembly of claim 1 wherein the primary heat sink has ridges to convey heat from the first substrate.
6. The lighting assembly of claim 1 wherein the secondary heat sink has a hollow interior that receives wiring that is electrically connected to the driving circuitry.
7. The lighting assembly of claim 1 , wherein a medium is within the vessel surrounding the substrate to convey heat to a vessel wall.