Holophane “Widerlite” Prismatic Bulkhead Light
Former MOD Facility, Scotland
1933 Catalogue Model | Large Format
An original Holophane “Widerlite” prismatic bulkhead of substantial scale and presence, reclaimed from a Ministry of Defence facility in Scotland.
This is the larger format example illustrated in the 1933 Holophane catalogue — a period where industrial lighting combined engineered precision with emerging Art Deco geometry.
Heavy cast aluminium construction paired with Holophane’s trademark prismatic glass diffuser creates a fitting that is both architecturally disciplined and visually powerful.
These are not reproduction industrial lights — they are authentic pre-war engineered luminaires built for institutional longevity.
Historical Context
Holophane were pioneers in prismatic glass technology, developing optical control systems that maximised light output while reducing glare.
The “Widerlite” series was designed as a bulkhead unit providing controlled light distribution around the lamp, ensuring maximum utilisation of output — a significant technical advancement for the period.
Originally specified for institutional, industrial and governmental environments, these fittings were engineered for durability, serviceability and long operational life.
The chamfered housing and stepped prismatic diffuser reflect the restrained geometry associated with early 20th century industrial Art Deco design.
Construction
Heavy cast aluminium body
Original Holophane prismatic glass diffuser
Hinged front assembly with captive screw fixing
Multi-part cast construction
¾” conduit entry (top and bottom)
Surface-mounted configuration
Gasketed joint construction
The casting depth and wall thickness are immediately apparent — these were built to endure.
Each unit carries the physical weight and authority only genuine early industrial lighting possesses.
Finish
Currently shown in natural reclaimed condition with oxidisation and surface character consistent with age and industrial use.
All pieces are sold fully restored and ready to install.
Available finish directions include:
Hand polished cast aluminium
Satin / brushed architectural aluminium
Specialist painted finishes (RAL or bespoke specification)
Powder coated finishes
Stabilised original patina (sealed)
Final finish is discussed and tailored to suit individual project requirements.
Electrical Specification
Professionally restored and rewired prior to sale.
Lamp holder configuration:
UK – E27 or B22
US – E26 or B22
LED compatible.
Dimmable depending on installation requirements.
Top and bottom conduit entry can be retained for exposed industrial installations, supplied with gasket and external cable exit if required.
Alternatively, conduit entries can be capped and rear wall entry used to achieve a fully concealed installation with no visible cabling.
As reclaimed antique fittings, IP or water ingress certification cannot be provided. These are sold for interior decorative use.
Dimensions
Length: 285mm
Width: 185mm
Depth: 150mm
A strong horizontal bulkhead with architectural weight.
Ideal For
Boot rooms & utility spaces
Converted agricultural buildings
Wine rooms
Commercial corridors
Hospitality environments
Industrial-modern residential interiors
Architectural stairwells
The prismatic glass creates structured refracted light rather than flat diffusion, adding subtle shadow definition and texture to surrounding surfaces.
Condition
Reclaimed from a former MOD facility.
Currently in unrestored state as shown.
Professionally restored to order.
Original glass retained.
Surface character consistent with age.
Availability
40 units available.
Sold individually.
Smaller format version available separately.
Pricing
Unrestored Stock – Price on Application.
This listing allows early reservation prior to restoration.
Final pricing is dependent on chosen finish and restoration specification.
Shipping
Free UK Mainland Shipping.
International buyers welcome.
Professionally packed and fully insured.
