The needs of high power light-emitting diodes (LEDs) are evolving as applications are needing luminaires rated from 100 to even 600 watts. Of the electricity produced in a LED, 70% converts to heat rather than light. If this heat is not removed, the LED system runs at high temperatures, which lowers the efficiency and also makes the entire system less reliable. Thermal management is critical to proper longevity and overall operation of high power LEDs. There are two main options to cool LED systems; passive and active cooling. Passive cooling utilizes a heat sink to draw heat away versus an external system removing heat in active cooling applications. Active cooling systems will improve the longevity and performance of your high-power LED application, therefore improving the return on investment.
LED components and their drive electronics create a considerable amount of heat that must be dissipated to maintain optimum light output and maximize an LED’s operating life. While using heat sinks is sufficient for normal LED applications, those requiring high-brightness, high-power LED fixtures should embrace active cooling. Lights for a home are designed completely differently than lights for a large warehouse, parking lot or stadium. Why would their cooling systems be the same?
The initial investment on an LED lighting system can be steep. But effective heat dissipation can reduce the total cost of an LED lighting system by minimizing the frequency of replacement intervals. Effective thermal management systems allow luminaire fixtures to operate at higher power levels, reducing the number of LEDs that are required to achieve a specified brightness. An active cooling system must be used in high lumen settings in order to disperse the additional heat generated by the increased LED components and drive electronics. Along with a heat sink, active cooling includes a subsystem, most often in the form of a fan, to force air over the heat sink.
GlobalTech LED is creating revolutionary active cooling solutions that are robust and are built to endure extreme usage. Their patented heat dissipation process utilizes a frictionless magnetic fan to force air through the heat sink creating a vortex that provides optimal levels of cooling. Excess heat is exhausted away from sensitive LED components on the LED controllers. The system’s slim design allows for it to be used in a large variety of retrofits. When designing a new LED system, sustainability and maintenance costs should be of high concern. Keeping LEDs cool improves product life.
For high-brightness LEDs in particular, the benefits of active cooling include a reduction in size of the light fixture, a decrease in overall cost, an increase in light output, and longer LED lifetime. Within the active cooling fixture on a Global Tech LED retrofit, air turbulence is twisted into a vortex pattern that allows for convention cooling. This solution allows for LED light use in some of the harshest environments. GlobalTech LED’s systems are designed to cool LEDs while consuming minimal energy, fit into a small form factor, and have an expected life matching that of the light source itself.
To learn more about their cutting edge active cooling systems visit http://globaltechled.com/about-global-tech-led/