Specifications

Philips Fortimo HBMt Gen 3 System Design In Guide 9
Specied lifetime performance
Figure 8 shows the expected lumen maintenance during a product lifetime. B50L70
indicates the minimum expected lumen maintenance level.
Flexible lumen package
LED drive current required to achieve the specied lumen package is specied in
Table 6. In a system with Xitanium Programmable LED drivers, it is possible to
achieve a light output different from the stated lumen package. By programming
the Adjustable Output Current (AOC) in a linear relationship to the stated module
Rset current, different lumen packages can be achieved. Maximum LED drive
current allowed for each module is stated in Table 6.
Fortimo LED HBMt Gen3 Module - 4000 and 6000 lumen
Operating the Fortimo LED HBMt Gen3 at lower than specied Tcase will increase
both the lumen output and the efcacy of the module. Figure 10 shows the relative
increase in performance.
Figure 8. Fortimo LED HBMt Gen3 lumen maintenance,
Tcase = 85° C and T (Tcase-Tmax.ambient) 50˚ C
Note: Lifetime performance specications are based on 1 switching cycle per day
and 4,000 burn hours per year, as conditioned for warranty. Operating the modules
under deviating conditions may result in different lifetime, lumen maintenance or
survival rates.
Warnings
Programming AOC above the stated maximum LED drive
current (refer to Table 6) for the module type voids product
warranty and will negatively impact lifetime performance.
Figure 9. Fortimo LED HBMt Gen3 ux and efcacy vs. LED drive
current, 4000 and 6000 lumen
Figure 10. Fortimo LED HBMt Gen3 ux and efcacy
vs. Tcase