ceiling
BETO system
ceiling
BETO blackboard
system
75
100
150
300
750
200
500
1000
[lx]
BETO
68
Ceiling
Plasterboard ceiling / Concrete ceiling
Visual comfort
3000 K, 4000 K
CRI ≥ 80 / UGR ≤ 19 / 65° ≤ 3000 cd/m²
Optional
Motion and daylight sensor
USPs
Pleasant feeling of space
Highest visual comfort
Measured surface
Light intensity
Uniformity
Visual task
Room horizontal
Em 540 lx
U0 0.68
Board vertical
Em 520 lx
U0 0.77
Ceiling
Em 115 lx
U0 0.55
Walls vertical
Em ≥ 150 lx
U0 ≥ 0.45
Teaching aid cabinet
Em 275 lx
U0 0.60
Cylindrical light
intensity
Em ≥ 240 lx
U0 ≥ 0.82
Quantity
Luminaire
Dimming level
3
BETO system, 6800 mm
4000 K, 104 W
75 %
1
BETO blackboard system, 6800 mm
4000 K, 148 W
75 %
System performance
468 W
power consumption
5.3 W/m2
System dimmed
Modelling factor
0.43
UGR (Viewer)
≤ 16.6
Classrooms
