Berchtold CHROMOPHARE E 778 - Page 28

LED surgical lights, single and combination lights CHROMOPHARE
®
E 778, E 668, E 558
Technical Data
28
CHROMOPHARE
®
E 668 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
160
klx
Electronic brightness control 80–160 klx
Total radiant power
at max. intensity
600
W/m
2
Total radiant power/intensity
3,7
mW/
(m
2
lx)
Color rendering index Ra 95
Circadian effect coefficient acv 0,72
Light field diameter 15-29 cm
d10 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
70
%
Residual brightness when obstructed by two
masks, with reference to Ec
50
%
Residual brightness in standardized tube, in
reference to Ec
100
%
Residual brightness in standard tube with
one shader, in relation to Ec
70
%
Residual brightness in standard tube with
two shaders, in relation to Ec
50
%
Depth of illumination L1 + L2
80
cm