Berchtold CHROMOPHARE E 778 - Page 29

LED surgical lights, single and combination lights CHROMOPHARE
®
E 778, E 668, E 558
Technical Data
29
CHROMOPHARE
®
E 558 Specifications Value Unit
Color temperature levels
(only with Color Select option)
3600
4000
4500
5000
K
K
K
K
Standard color temperature level
(without Color Select option)
4500 K
Intensity Ec at 1 m 120 klx
Electronic brightness control 60–120 klx
Total radiant power
at max. intensity
440 W/m
2
Total radiant power/intensity 3,7 mW/
(m
2
lx)
Color rendering index R
a
95
Circadian effect coefficient a
cv
0,72
Light field diameter 15-29 cm
d
10
Light field,
∅ at 10 % of max. intensity
15 cm
d
50
Light field,
∅ at 50 % of max. intensity
9,6 cm
Residual brightness when obstructed by one
mask, with reference to Ec
56 %
Residual brightness when obstructed by two
masks, with reference to Ec
46 %
Residual brightness in standardized tube, in
reference to Ec
100 %
Residual brightness in standard tube with
one shader, in relation to Ec
56 %
Residual brightness in standard tube with
two shaders, in relation to Ec
46 %
Depth of illumination L1 + L2 85 cm