5. What is the significance of the heat sink?

Semi-conductors and other electronics have a limited tolerance to the effects of heat on lifetime and performance. Higher power LEDs (with higher current) are generally less efficient and result in heat buildup. A proportionally sized heat sink and heat transference system must be engineered to optimize the LEDs within a fixture. The larger the surface area of a heat sink made of a solid conductive material such as aluminum, the more ideal it is for creating airflow, dissipating heat and extending the usable light of the LEDs.

WAC Lighting designs and engineers die-cast aluminum heat sinks proportional to the excess heat generated by the LEDs, resulting in optimal heat transference.