Specifications

Design-in guide Philips Fortimo LED Line High Voltage System 24
Fortimo LED Line 2ft 1250lm 2R HV1 show no lumen depreciation at all at 6000
hours of LM80 testing. These products are specified to reach B50L70, and we
are confident, on the basis of the encouraging 6000-hour test results, that the
lumen maintenance could be even better.
Lumen depreciation as a function of operating hours for LED Line 2ft 2200lm 1R HV1
Lumen depreciation as a function of operating hours for LED Line 1ft 1100lm 3R HV1
Lumen maintenance is also affected by temperature. Lowering the Tc will
increase the lumen maintenance time. The graph at the next page shows the
lumen depreciation curves (B50) at I life for Tc nom, Tc life and Tc max.
Lumen depreciation as a function of operating hours for LED Line 2ft 2200lm 1R HV1 at
different Tc values
B50
B10
Ref: 18W T8
Specification
Min.B50L70
0%
100%0%
100%
0 10,000 20,000 30,000 40,000 50,000 60,000
Lumen depreciation (%)
Lumen maintenance (%)
Lumen maintenance
Fortimo LED Line 2ft 2200lm 1R HV1
Operating lifetime (hours)
70%
50,000 hours proven by certified
laboratory
The B10 and B50 graphs show expe cted lumen maintenance at current life and Tc life
B50
B10
Ref: 18W T8
Specification
Min.B50L70
0%
100%0%
100%
0 10,000 20,000 30,000 40,000 50,000 60,000
Lumen depreciation (%)
Lumen maintenance (%)
Lumen maintenance
Fortimo LED Line 1ft 1100lm 3R HV1
Operating lifetime (hours)
70%
50,000 hours proven by certified
laboratory
The B10 and B50 graphs show expe cted lumen maintenance at current life and Tc life
Tc nom 35 °C
Tc life 58 °C
Tc max 70 °C
Ref: 18W T8
Specification
Min.B50L70
0%
100%0%
100%
0 10,000 20,000 30,000 40,000 50,000 60,000
Lumen depreciation (%)
Lumen maintenance (%)
Lumen maintenance (B50)
Fortimo LED Line 2ft 2200lm 1R HV1
Operating lifetime (hours)
70%
50,000 hours proven by certified
laboratory
The B5 0 graphs show expe cted lumen maintenance at Current life