Slim surface mounted luminaire in extruded aluminium
CE LED DIM emergency Daylight sensor pir_sensor row-mounting mounting_ld_surface_celing-2 mounting_ld_surface_celing_up_backside

C20-S4 MP

Pictured version

C20-S4 SU

Pictured version


Glamox C20-S4 for surface mounting is extremely functional as workplace lighting in offices and educational buildings. The luminaire is based on a compact and simplified form, along with a solid material construction, that gives it an exclusive and confident design. Available with different optics suitable for different interior environments and light quality.

Also available with a halo effekt.

The luminaire is produced in extruded aluminium with moulded aluminium end caps. Supplied in two colours, matt silver grey (RAL 9006) or white. The optic is clipped into the body. The luminaire is mounted directly onto the ceiling or cable rail.

Most options can be supplied with integrated LED emergency light. For optimised energy savings, C20-S4 can be supplied with integrated sensor for motion and daylight.

C20-S4 is also available with LED.

Light source

LED 2000lm - 4700 lumen
Colour temperature 3000/4000 K, CRI Ra 80, MacAdams 3

1 x T5 28, 35, 49, 54, 80W
2 x T5 28, 35, 49, 54W. 
Can be supplied with or without light source.


Electronic ballast (HF) or DALI. Driver life time up to 100.000 h/10 % (max failure) at Ta 25°C.

Body material & colour

Silver grey or white aluminium body and die cast aluminium end caps.


T5: 2 mounting key holes on top.
LED: 4 mounting key holes on top.


Cable entry in top or knockouts in each end. 3 or 5 pole push-in terminal block.


Double parabolic Softlight optic type SL/SU, a double parabolic high gloss Darklight optic type DL/DU or a high quality microprismatic diffuser MP.

LED: SU or MP.

Integrated emergency light

LED emergency light type standard (S), Selftest (ST) and addressable DALI (DALI).

Integrated sensors

Stand-alone presence sensor type S-SEN, master / slave presence sensor with corridor function type M-SEN and a combination of presence and daylight sensor type D-SEN.


Code Undefined Undefined Undefined Undefined
DL/DU DL and DU are both a high efficient double parabol..ic high gloss Darklight louver. DL = 1x54W..
DU = 2x28W
c20-s4_154hf_dlc20-s4_228hf_du c20-s4_wh_28_35_dl_du Versions
MP MP is a high quality micro prismatic diffuser 1x54W..
c20-s4_154hf_mpc20-s4_228hf_mp c20-s4_wh_28_35_mp Versions
SL/SU SL and SU are both softlight double parabolic louv..ers with a high efficient semi diffuse reflector material. SL = 1x54W..
SU = 2x28W
c20-s4_154hf_slc20-s4_228hf_su c20-s4_wh_28_35_sl_su Versions


Product environment

Type   L (mm)  C (mm)
 LED 1200   1274  900
 LED 1500  1574  1230

C20-S4 LED

Type   L (mm)  C (mm)
 LED 1200   1274  900
 LED 1500  1574  1230
C20-S4 1200 LED 3300 840 SU

C20-S4 LED 3000 SU

Light measurement drawings

C20-S4 1200 LED 3300 840 SU

Measurement drawings

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RFA Revit Files


RFA Revit Files

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