• Integral Definable Light Output (DLO) functionality that pre-programs a specified light output for energy saving and customisation
  • Three optic configurations:
    • Central Hexaprism for feature aesthetic and visual differentiation
    • Full Hexaprism for optimum uniformity and glare control
    • Quadraprism for all round glare control
  • Light Outputs:
    • Central Hexaprism - 3500 lumens
    • Full Hexaprism - 3000 or 4000 lumens
    • Quadraprism - 3000 or 4000 lumens
  • Emergency Output (BLF):
    • Central Hexaprism - 300 Lumens
    • Full Hexaprism - 200 Lumens
    • Quadraprism - 200 Lumens
  • All outputs are less than 3000 cd/m2 at 65° elevation
  • Available with 3000K and 4000K LED
  • Full and Central Hexaprism optics have E-light LED as standard 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 luminaires 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 (4000K) DALI LL/CW L70 B50
3500lm (23W) - e-light CLCEY3/SRF1 ECA 153 >100k >100k 51k

Full Hexaprism

Full Hexaprism (4000K) DALI LL/CW L70 B50
3000lm (24W) - e-light CLFEY3/SRF1 ECA 126 >100k >100k 51k
4000lm (32W) - e-light CLFEY5/SRF1 ECA 125 >100k >100k 51k


Quadraprism (4000K) DALI LL/CW L70 B50
3000lm (26W) CLQY3/SRF1 ECA 114 >100k >100k 51k
4000lm (36W) CLQY5/SRF1 ECA 111 >100k >100k 51k


COMEPS Add /EP before /SRF1 i.e CLCEY1/EP/SRF1

For 3000K colour temperature, please contact Whitecroft.


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 6.0
Quadraprism 1194 297 60 88 5.1 6.0
Plasterboard Frame 1260 360 101 3.0 1240 x 332

Photometic Performance

Photometic Performance Diagram - Central Hexaprism 23W LED 3500 Lumen
Central Hexaprism 23W LED 3500 Lumen
LOR = 100.0%
SHR MAX = 1.38
Photometic Performance Diagram - Full Hexaprism 32W LED 4000 Lumen
Full Hexaprism 32W LED 4000 Lumen
LOR = 100.0%
SHR MAX = 1.36

Performance Guide

Performance Guide Diagram 1
  • Lamps: 32W LED
  • Illuminance: 443 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. Three prism optic configurations; Central feature Hexaprism for aesthetic differentiation, Full Hexaprism for optimum uniformity or Quadraprism for all round glare control. 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.