• Integral Definable Light Output (DLO) functionality that pre-programs a specified light output for energy saving and customisation
  • Two Hexaprism optic configurations:
    • Central Hexaprism for feature aesthetic and visual differentiation
    • Full Hexaprism for optimum uniformity and glare control
  • Light Output Range:
    • Central Hexaprism; 2700 – 4600 lumens
    • Full Hexaprism; 1900 – 4000 lumens
  • Emergency Output (BLF):
    • Central Hexaprism - 300 Lumens
    • Full Hexaprism - 200 Lumens
  • All outputs are less than 3000 cd/m2 at 65° elevation
  • 4000K 'cool' white LED's
  • Available with e-light LED option for increased luminous efficacy (ll/cw) and reduced through life costs


  • Fabricated steel body with extruded aluminium frame finished white
  • RAL Colour: White RAL9010.
  • IP40
  • Optional air handling facility at 40 litres per second
  • DALI as standard
  • Integral COMEPS emergency available
  • Suitable to replace an SAS330 tile with gasket (1194mm x 297mm), gasket available from ceiling manufacturer

Note: Central Hexaprism and Full Hexaprism with COMEPS products are supplied with GST 18/6 black/blue panel mount plug and socket. For alternative configurations including Command Fast Link, consult Whitecroft Technical Desk.

Major Project Solutions

This product has been designed for use in major projects and as such is subject to minimum order quantities. For more information please consult your local Sales Engineer

Central Hexaprism

Central Hexaprism DALI LL/CW L70 B50
2700lm (23W) CLCY1/SRF1 ECA 120 >100k >100k 64k
3000lm (24W) CLCY2/SRF1 ECA 121 >100k >100k 54k
3500lm (30W) CLCY3/SRF1 ECA 119 >100k >100k 54k
4000lm (35W) CLCY4/SRF1 ECA 117 >100k 98k 45k
4600lm (45W) CLCY5/SRF1 103 >100k 79k 37k
3500lm (23W) - e-light CLCEY3/SRF1 ECA 153 >100k >100k 51k
4600lm (30W) - e-light CLCEY5/SRF1 ECA 154 >100k >100k 51k

High efficacy e-light available across the Cityline Central Hexaprism range, see options below for order codes on other outputs

Full Hexaprism

Full Hexaprism DALI LL/CW L70 B50
1900lm (18W) CLFY1/SRF1 ECA 107 >100k >100k >100k
2500lm (23W) CLFY2/SRF1 ECA 107 >100k >100k 95k
3000lm (28W) CLFY3/SRF1 ECA 106 >100k >100k 76k
3500lm (33W) CLFY4/SRF1 ECA 105 >100k >100k 75k
4000lm (38W) CLFY5/SRF1 105 >100k >100k 65k
3000lm (24W) - e-light CLFEY3/SRF1 ECA 126 >100k >100k 51k
4000lm (32W) - e-light CLFEY5/SRF1 ECA 125 >100k >100k 51k

High efficacy e-light available across the Cityline Full Hexaprism range, see options below for order codes on other outputs


COMEPS Add /EP before /SRF1 i.e CLCY1/EP/SRF1
HIGH EFFICACY e-light Add E after CLC or CLF i.e CLCEY1/SRF1


Plasterboard Frame CLFPBF/SRF1
Dimensions Diagram 1
VERSION L W W1 H H1 KG KG(EM) Cut Aperture
Central Hexaprism 1194 297 60 5 5.5
Full Hexaprism 1194 297 60 88 5.1 6
Plasterboard Frame 1260 360 101 3kg 1240 x 332

Photometic Performance

Photometic Performance Diagram - Central Hexaprism 45W LED 4600 Lumen
Central Hexaprism 45W LED 4600 Lumen
LOR = 100.0%
SHR MAX = 1.38
Photometic Performance Diagram - Full Hexaprism 38W LED 4000 Lumen
Full Hexaprism 38W LED 4000 Lumen
LOR = 100.0%
SHR MAX = 1.36

Performance Guide

Performance Guide Diagram 1
  • Lamps: 45W LED
  • Illuminance: 522 lux
  • Spacing: 2.7m x 3.0m

  • Maintenance: 0.8
  • Reflectance: 70/50/20
  • Ceiling Height: 2.7m
  • Working plane: 0.75m

LED Performance

Colour Temp RA (CRI) Colour consistency
4000K >80 MacAdam 3 SDCM

Recessed linear tile replacement 1200x300mm LED luminaire with optional air return facility. Two Hexaprism optic configurations; central feature Hexaprism for aesthetic differentiation and full Hexaprism for optimum uniformity. Integral DLO functionality for specified light outputs – as Whitecroft Lighting CITYLINE.

Product Downloads

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At Whitecroft, we have developed the Whitecroft Lighting Academy, a structured learning programme that will allow us to develop our future leaders, and ensure all of our staff have access to the best professional development opportunities available in our industry.

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At Whitecroft, our BIM engineers are not only adept at using Autodesk Revit; they are also fully trained lighting designers. We believe this is essential. When you use our teams on your project, you can rest assured the whole lighting solution is being designed, assessed and managed by people who know the technology inside out and have a full understanding of your requirements.

- We can populate your BIM model with a full lighting design.

- All our BIM families are created in-house, so if bespoke models are required, we can deliver them.

- We use Relux to create design validation data that confirms your project’s compliance and supports your BIM model.

- Once the model is complete, we work with you to interrogate every element including quantity schedules, costs, energy validation, COBie data and delivery schedules.

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Whitecroft have become successful in the lighting market, with focus on various sector specialisms. We now have extended our skills by offering a fully managed service which supplies much more than just the luminaires.

Project Management skills have been developed to save time on a project by planning it out and considering all relevant factors which may affect its outcome.

From design to specification, through to product selection, commissioning and after-sales support, we can help our customers meet the cost challenges of the commercial environment.

Our Project Management services encourage a smooth transition throughout your lighting procurement, manufacture, delivery and installation, by providing advice on the best techniques to employ.


Whitecroft Lighting continuously strives to offer customers the best service in the industry. This covers all aspects of our service from lighting design and quotations, to ensuring on-time deliveries and providing dedicated project management.

Whitecroft Lighting operates in a sustainable way by creating lighting solutions best adapted to customer requirements, with the least possible impact on the environment including consumption of natural resources. Whitecroft Lighting contributes to and takes responsibility for the furtherment of sustainability, which it also requires of all suppliers in it’s chain.

Through our environmental management system we are continually reducing our use of natural resources, whilst optimising recycled materials, avoiding waste generation and increasing recycling. As a responsible manufacturer we carry our company values and policies into our supply chain so that our customers can have confidence in the fact that all our lighting solutions are manufactured using only environmentally safe materials and processes.