Thermal Management and Lumen Maintenance
When designing and engineering LED lighting systems, thermal management is critical that heat is drawn away from the light source, otherwise known as the LED junction. Elevated temperatures will adversely affect the performance of the LEDs and result in light output reduction and chip degradation.
All efforts are taken to design and engineer all of our luminaires for maximum thermal efficiency and sustainable lumen maintenance. All components that are used in the construction of a Mondoluz luminaire utilize a high grade Aluminium (Al). This has one of the highest thermal conductivity (W/mK) ratings of the metal elements.
To ensure maximum heat draw from the LED source, each light engine has been specially engineered with the heat sink and head fused together. Additionally, when the LED source is secured to the head a heat transfer compound is utilized to increase the thermal dissipation. This allows for fluid transfer of heat away from the LED junction with the least amount of thermal resistance.
Lumen maintenance is measured using the industry standard 70% light output from its peak (L70). This is determined by operating conditions and time. Based on the design of our luminaires, we are able to maximize the L70 time to over 75,000 hours of operation. In addition, all LEDs used have been analyzed using the IES LM-80 test, which is an “approved method for measuring lumen depreciation of solid-state (LED) light sources, arrays and modules.”
