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Bayon

Optics

  • Low Output (less than 3000 cd/m2 at 65° elevation)
    – 1200mm, 2500 lumens (26W)
    – 1500mm, 3300 lumens (32W)
    – 1800mm, 4150 lumens (39W)
  • High Output
    – 1200mm, 5300 lumens (60W)
    – 1500mm, 7300 lumens (82W)
    – 1800mm, 9500 lumens (105W)
  • High and low outputs should not be mixed in any continuous run
  • 60% downlight and 40% uplight distribution ratio
  • Hexaprism optic for glare control and optimum optical diffusion
  • 4000K ‘cool’ white LEDs

Body

  • Slim aluminium body finished in silver or white
  • Luminaires available in three nominal lengths in low or high output
  • Additional special colours available on request (contact Whitecroft Technical Desk)
  • For stand alone or continuous installation
  • Continuous mounting bracket supplied with each Start/End or Mid luminaire
  • Through wiring as standard on continuous luminaires
  • Mounting using architectural wire suspension kit with slim rose detail (up to 3m drop) Available blank or with openings for bringing power in
  • Optional integral Command 4 detector mounted centrally into the body for standalone luminaires
  • Optional integral COMD1 detector mounted centrally into the body for continuous luminaires
  • Die cast aluminium end caps are supplied separately for a continuous system. For Stand Alone luminaires, two end caps are supplied
  • 600mm infill available (Start/End row luminaires must be used in continuous run with infills)
  • Choice of 3hr Emergency or COMEPS emergency options (COMEPS can be wired as Easytest if required)
Order Codes
Dimensions
Performance
To Specify

Order Codes

Low Output Start/End Row*** DALI 3hr Emergency
1200mm, 2500 lumens, 26W BYSTY121S BYSTY121SEM
1500mm, 3300 lumens, 32W BYSTY151S BYSTY151SEM
1800mm, 4150 lumens, 39W BYSTY181S BYSTY181SEM
Low Output Mid Row (without infills) DALI 3hr Emergency
1200mm, 2500 lumens, 26W BYMDY121S BYMDY121SEM
1500mm, 3300 lumens, 32W BYMDY151S BYMDY151SEM
1800mm, 4150 lumens, 39W BYMDY181S BYMDY181SEM
Low Output Stand Alone DALI 3hr Emergency
1200mm, 2500 lumens, 26W BYSAY121S BYSAY121SEM
1500mm, 3300 lumens, 32W BYSAY151S BYSAY151SEM
1800mm, 4150 lumens, 39W BYSAY181S BYSAY181SEM
High Output Start/End Row*** DALI 3hr Emergency
1200mm, 5300 lumens, 60W BYSTY122S BYSTY122SEM
1500mm, 7300 lumens, 82W BYSTY152S BYSTY152SEM
1800mm, 9500 lumens, 105W BYSTY182S BYSTY182SEM
High Output Mid Row (without infills) DALI 3hr Emergency
1200mm, 5300 lumens, 60W BYMDY122S BYMDY122SEM
1500mm, 7300 lumens, 82W BYMDY152S BYMDY152SEM
1800mm, 9500 lumens, 105W BYMDY182S BYMDY182SEM
High Output Stand Alone DALI 3hr Emergency
1200mm, 5300 lumens, 60W BYSAY122S BYSAY122SEM
1500mm, 7300 lumens, 82W BYSAY152S BYSAY152SEM
1800mm, 9500 lumens, 105W BYSAY182S BYSAY182SEM

Accessories

End caps (pair) only required for continuous system BYECS
Wire suspension rose kit for power supply* BYSUSKITSP
Wire suspension rose kit** BYSUSKITS
600mm infill*** BYINF600S

Options

COMD1 Add Q1 before Y i.e BYSTQ1Y121S
COMEPS Add suffix /EP i.e BYSTY121S/EP
COMMAND 4 Add Q4 before Y i.e BYSTQ4Y121S
White Finish Replace S with W i.e BYSTY121W
* One required per start of continuous run or Stand Alone luminaire. To be located at one end for power to be fed through
** Two suspension kits required per luminaire. 600mm infills do not require a suspension kit
*** When using infills in a continuous run, Start/End row luminaires must be used throughout

Dimensions

Version W L KG H KG(EM)
Start/End or Mid Row, 1200mm 200 1124 5.4 51 6.0
Start/End or Mid Row, 1500mm 200 1406 6.8 51 7.4
Start/End or Mid Row, 1800mm 200 1686 8.1 51 8.7
Stand Alone, 1200mm 200 1214 5.8 51 6.4
Stand Alone, 1500mm 200 1496 7.2 51 7.8
Stand Alone, 1800mm 200 1776 8.5 51 9.1
Version W L KG H
Infill 200 600 2.3 51

Photometric Performance

1 x 4000K Stand Alone, High Output 1200mm 60W LED 5300 lumens
  • LOR = 100.0%
  • SHR MAX = 1.50
Utilisation Factors UF(F)
Room Reflectance Room Index
C W F 1.00 3.00 5.00
0.7 0.5 0.2 0.66 0.87 0.92
1 x 4000K Stand Alone, Low Output 1200mm 26W LED 2500 lumnes
  • LOR = 100.0%
  • SHR MAX = 1.50
Utilisation Factors UF(F)
Room Reflectance Room Index
C W F 1.00 3.00 5.00
0.7 0.5 0.2 0.66 1.87 0.92

Performance Guide

Lamps Illuminance Spacing
1 x 39W LED 503.00 lux 2.4m x 2.7m
  • Maintenance: 0.8
  • Reflectance: 70/50/20
  • Ceiling Height: 3.3m
  • Working Plane: 0.8m
Lamps Illuminance Spacing
1 x 32W LED 317.00 lux 3.0m x 2.7m
  • Maintenance: 0.8
  • Reflectance: 70/50/20
  • Ceiling Height: 3.3m
  • Working Plane: 0.8m

LED Performance

Colour Temp Ra (CRI) Life Expectancy Colour Consistency
4000K >80 L80(50,000hrs) MacAdam 3 SDCM

To Specify

Suspended architectural LED luminaire with direct: indirect lighting ratio of 60:40. Advanced Hexaprism optic providing glare control and maximum diffusion. For continuous or stand alone configuration. Luminaires can be connected continually without infills for a seamless aesthetic – as Whitecroft Lighting BAYON

Our Water Cooler
is from AquAid