Specifications

Design-in guide Philips Fortimo LED Line High Voltage System 16
Lighting characteristics
Polar diagram of Fortimo LED Line 1ft 650 lm 3R
Polar diagram of Fortimo LED Line 1ft 1100 lm 3R
Beam shape
The Philips Fortimo LED Line generates a Lambertian beam shape, which is a
pragmatic starting point for OEMs wishing to design secondary optics.
High-quality light
High-quality white light is characterized by a color rendering index (CRI) of 80. It is
also important to apply widely favored CCTs (in general lighting applications: 3000
and 4000 K) and a color consistency comparable with conventional fluorescent
lighting. The Fortimo LED Line 1R and 3R are available in 3000, 3500, 4000
and 5000 K.
Color consistency (SDCM)
The specification of our Fortimo LED Line 1R and 3R 3000, 3500, 4000 and 5000 K
for color consistency is 3.5 SDCM at 0 hours. At 6,000 hours the color shift u‟v‟ is
smaller than 0.007.
SDCM stands for Standard Deviation of Color Matching and the value 3.5 refers to
the size of an ellipse around the black body locus. Staying within this ellipse results in
a consistency of light which ensures that no color difference is perceivable between
one LED Line and another with the naked eye in most applications.
Warning: the 3.5 SDCM color consistency specification may not be sufficient for
applications that are sensitive to color differences like wall washers, which typically
require 2 SDCM.
The central CCT points are (measurement tolerance ±0.004):
 3000 K  3070 K  CIEx 0.4322 and CIEy 0.4024
 3500 K  3490 K  CIEx 0.4059 and CIEy 0.3908
 4000 K  4020 K  CIEx 0.3802 and CIEy 0.3786
 5000 K  5090 K  CIEx 0.3427 and CIEy 0.3523
Polar diagram of Fortimo LED Line 2ft 2200 lm 1R
Polar diagram of Fortimo LED Line 2ft 1250 lm 2R