• Light source options:
    • LED Lumen packages ranging from 3208 to 11440 lumens (33.8W to 104.5W)
  • Emergency Output (BLF):
    • Prismatic Acrylic & Glass - 270 Lumens
    • Prismatic TP(a) only - 284 Lumens
  • All optics are TP(a) rated:
    • Prismatic acrylic above 4mm toughened glass
    • Single sheet 3mm prismatic fireguard material Note - a glass front face resists all cleaning chemicals and is best for a sterile environment. Other TP(a) materials are selected for best chemical resistance if advice is needed contact the Whitecroft Technical Desk.
  • LED product also includes a diffusing sheet mounted behind the prismatic material
  • LED product has colour rendering index of Ra ≥80 as standard
  • Ra ≥90 is available as an option for enhanced examination in Healthcare environments


  • Front access only
  • Welded steel body finished white
  • Compatible with modular exposed T and spring T ceilings. Recessing panels are recommended on spring T ceilings to retain room integrity
  • Dual IP rated - to a BSI tested and certified construction as protecting the room to IP65 from void contamination with the front frame in place and IP54 with the frame removed
  • Extruded aluminium outer frame (gasketed to the T bar) and inner frame integrated in line but at an angle to eliminate a vertical gap. Concealed front frame fixings and white full gloss frames
  • RAL Colour: White RAL9016
  • The diffuser clamping system is highly secure and will accept glass. The inner frame design facilitates diffuser replacement
  • Robust extruded aluminium side arm cam brackets adjusted from outside the sealed body

Prismatic acrylic above 4mm toughened glass (LED)

Prismatic acrylic above 4mm toughened glass (LED) HF Gear 3hr Emergency LL/CW L70 B50
LED 3208 Lumens 33.8W (600x600) DLAAGH14K DLAAGH14KEM 95 >100k >100k 65k
LED 5430 Lumens 62.4W (600x600) DLAAGH24K DLAAGH24KEM 87 >100k 84k 39k
LED 3208 Lumens 34.1W (1200x300) DLAAGH34K DLAAGH34KEM 94 >100k >100k 65k
LED 5430 Lumens 58.2W (1200x300) DLAAGH44K DLAAGH44KEM 93 >100k 84k 39k
LED 6417 Lumens 59.1W (1200x600) DLAAGH54K DLAAGH54KEM ECA 109 >100k >100k 65k
LED 8144 Lumens 71.5W (1200x600) DLAAGH64K DLAAGH64KEM ECA 114 >100k >100k 46k
LED 10859 Lumens 104.5W (1200x600) DLAAGH74K DLAAGH74KEM 104 >100k 84k 39k

Note: Luminaire codes DLAAGY44K, DLAAGY54K and DLAAGY64K have 2 drivers and require 2 DALI addresses
Note: Luminaire codes DLAAGY74K have 3 drivers and require 3 DALI addresses

Prismatic TP(a) single sheet (LED)

Prismatic TP(a) single sheet (LED) HF Gear 3hr Emergency LL/CW L70 B50
LED 3380 Lumens 33.8W (600x600) DLAKH14K DLAKH14KEM 100 >100k >100k 65k
LED 5720 Lumens 62.4W (600x600) DLAKH24K DLAKH24KEM 92 >100k 84k 39k
LED 3380 Lumens 34.1W (1200x300) DLAKH34K DLAKH34KEM 99 >100k >100k 65k
LED 5720 Lumens 58.2W (1200x300) DLAKH44K DLAKH44KEM 98 >100k 84k 39k
LED 6760 Lumens 59.1W (1200x600) DLAKH54K DLAKH54KEM ECA 114 >100k >100k 65k
LED 8580 Lumens 71.5W (1200x600) DLAKH64K DLAKH64K EM ECA 120 >100k >100k 46k
LED 11440 Lumens 104.5W (1200x600) DLAKH74K DLAKH74KEM ECA 109 >100k 84k 39k

Note: Luminaire codes DLAKY44K, DLAKY54K and DLAKY64K have 2 drivers and require 2 DALI addresses
Note: Luminaire codes DLAKY74K have 3 drivers and require 3 DALI addresses


Recessing Panel 600x600mm RP600X600
Recessing Panel 600x1200mm RP600X1200
Recessing Panel 300x1200mm RP300X1200


COMEPS Add suffix /EP i.e DLAAGH14K/EP
DALI DIMMING Replace H with Y i.e DLAAGY14K
Ra90 (LED only) Add 9 after D i.e D9LAAGH14K
600x600 LED 598 598 124
1200x600 LED 1198 598 124
1200x300 LED 1198 298 124

Photometic Performance

Photometic Performance Diagram - 600x600mm 5700 lumen, 73W LED
600x600mm 5700 lumen, 73W LED
LOR = 100%
SHR MAX = 1.39

Performance Guide

Performance Guide Diagram 1
  • Lamps: 4300 lumen LED
  • Illuminance: 530 lux
  • Spacing: 2.4m x 2.4m

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

LED Performance

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

Recessed modular LED clean room luminaire to a BSI tested and certified construction as IP65 frame on IP54 frame off with twin in line extruded aluminium frames with angled integration and concealed front frame fixings, suspension via robust aluminium cam brackets adjusted from outside the luminaire - as Whitecroft Lighting DTFA ELITE

Product Downloads

Select all
  • PDF Installation Leaflet - LED
  • PDF Ceiling Compatibility
  • PDF Maintenance Factors
  • ZIP Revit
  • ZIP Relux
  • ZIP Dialux
  • PDF DTFA Elite Datasheet
  • PDF Thermoplastic Lighting Diffusers

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.