Compared to traditional incandescent lamps, LED fixtures operate at cool temperatures. The main reason for this feature is the lack of infrared radiation emitted during use (doesn’t apply to infrared LED Work lights).
Heat sinks inside the units also contribute to active cooling. From a manufacturing perspective, there are several types of LED heat sinks available on the market today.
Aluminum Heat Sink Designs
Aluminum is a common material used for LED heat sinks. Designs for the heat-dissipating component vary, depending on the needs of the LED light. A stamping aluminum heat sink takes on the shape of a plate with indentions for active heat management.
On the other hand, an extruded aluminum heat sink is used for molded design requirements. This type of LED heat sink is characterized by its thin cooling wings. Compared to a stamping heat sink, this variant is typically applied to circular LED fixtures. The former heat sink option is usually found on LED light bars and rectangular LED lamps.
Die-cast aluminum heat sinks for LED units are sturdy. However, the wings are not as widespread resulting in less heat dissipating capabilities.
Benefits of Heat Sinks for LEDs
Heat sinks are designed to improve the lifespan and performance of LED lighting systems, especially for components prone to high-heat generation. Furthermore, the parts ensure light uniformity during use.
Extreme heat can cause inconsistent light quality for LEDs, forcing the units to flicker or shift in color temperature. For industrial work sites, this is a major concern, as luminaries play an essential role in safety at the workplace.
Other options for heat sink materials include copper and thermoplastics. Copper offers cost-effective benefits, while thermoplastics are suitable for compact LED work lights. These days, high-quality plastics can also be utilized for LED heat management. Additionally, the latter option comes with lightweight advantages.