Specifications
Philips Fortimo HBMt Gen 3 System Design In Guide 23
How to maximize system lifetime?
• Ensure good thermal contact between module, driver and the coldest part of
the luminaire
• Place module(s) and driver at a distance from each other to obtain a more
homogeneous temperature distribution in the luminaire
• It is recommended that the modules are mounted on an aluminum housing that is
at least 3 mm thick; thinner housings will limit the heat flow through the housing,
while thicker housings will improve the heat flow through the luminaire, resulting
in a lower Tcase of the module
Important points for luminaire design
• When multiple modules are used, it is recommended they are spread out in the
luminaire, in order to distribute the thermal load
• Reflectors should be used in the design of optics
• In order to accommodate every application, Fortimo LED High Brightness
Modules can be dimmed or used in pairs to optimize the lumen package
• Simplify the heat path from modules to ambient air. Limit the number of thermal
interfaces in the primary heat path towards the ambient air
• If thermal interfaces are inevitable, use thermal interface materials (TIM) to
ensure proper thermal contact, i.e. between module and luminaire housing
• Ensure proper heat dissipation by using highly conductive materials and/
or materials of sufficient thickness to maximize effective use of the available
cooling surface
• Use anodized, painted surfaces rather than blank surfaces in order to increase
the transfer of heat via thermal radiation