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SP-12 Large Oval LED Bulkhead

Standard, Indoor-Outdoor

First made in the 1950s, the SP-12 Bulkhead has now been recreated for discerning modern customers like you, and fitted with 12W LEDs for better energy efficiency, and a brighter, whiter, lighter output. Ideal for indoor and outdoor use, especially when increased visibility is vital.

Available from


Create your ideal SP-12 specification, with a range of casing finishes for the look that suits your project. Choose between a Clear glass Diffuser or Opal for a softer light, and don’t forget to include Presence Detection to optimise when your light is in use, or Emergency 3hr battery back-up for peace of mind in power cuts.






Fall in love at first light

Brighter, whiter and lighter for the planet, see why the J&G Coughtrie Large Oval LED Bulkhead is suited to the discerning modern customer.

Flexible mounting in the Extreme

The marvellously versatile SP-12 can be wall and ceiling mounted, both indoors, and outdoors, making it one of our most versatile lights. From bathrooms and stairwells to rail tunnels and cooker hoods, the world really is your oyster, old chap.

Supremely Robust

Each light has been cast using premium materials, that include a stylish yet solid aluminium casing, with beautiful, thick glass ribbed diffuser. Each is also fully waterproof, and corrosion resistant, for use in both wet and dry conditions - even at seas (ahoy there, matey!)

Bright And White

The 12W LEDs cast a heavenly glow that’s bright, white, and evenly spread, all through a hand pressed and blown, thick opal glass diffuser. Each light can also be fitted with a clever presence detector, that triggers when people, or the neighbour’s cat, are in close range - great for keeping the stately home secure.

Finished to your fancy

The SP-12 can be finished with several different options, to suit your flights of fancy, from chip-resistant paint in a range of colours, to an industrial aluminium finish which simply has a clear, protective lacquer applied to achieve that raw, manufactured industrial look, creating an unique and distinct finish each time. With our bespoke finishing service, you’ll also be able to specify a unique RAL colour, for powder coating.


The devil is in the details

The Sp-12 has been put together with the kind of attention to detail that we’re famous for at J & G Coughtrie, with a style that’s both timeless and enduring. Beauty, and substance. That’s our bag.


Hooded Power Ports

Rear, top and bottom access for power cable connection.

Winged Screw Flanges

The external screw mounting points enable the SP-12 to be quickly fixed in place, without needing to go to the trouble of prising open the casing. Perfection!

Glass With Class, Chaps

Thick, hand pressed and blown opal glass diffuser, with distinctive decorative ribs, and our iconic Coughtrie brand mark.

Shaped For Service

With its imposing, elegant oval shape, this is a beauty that can also don a practical head (the opposite of Marilyn Monroe).

Built For Extremes

With a robust, hand cast aluminium casing, the SP-12 is salt spray certified, and section 12 tunnel approved - this is one rugged light!


The 12W LEDs generate a bright, white, modern flood of light that provides extra clarity where required. They’re also guaranteed for 50,000 hours, before they need to be replaced, easing your environmental woes.

Technical Information

If you have tech spec’s in mind, scroll through the marvellous information below, to locate all the detailed product information you might need to finalise your project details: Dimensions, weight, photometric data, materials and electrical characteristics are all included, and you are most welcome.

Product Information

Product Materials

Cast Aluminium Casing; Pressed And Blown Glass Diffuser; Sheet Aluminium Gear Tray; TPU Gasket; Steel Screws; Porcelain Lamp Holder; Powder Coated Paint / Aluminium Anodising Finishing.

Product Dimensions

Light fitting: Length: 297mm; Width: 176mm; Depth: 135mm

Product Weight

2200 grams

IP Rating

IP65: Suitable for inside or outside use in wet weather environments. IP rated as “dust tight” and protected against water projected from a nozzle.

Luminaire Characteristics




Constant Current

Working Temperature

-25 to 50

Emergency Working Temperature

-5 to 50

System Lumens









50,000 hours

Electrical Characteristics







Photometric Data

80 Years of Sustainability

J&G Coughtrie has been following sustainable manufacturing and design practices for 80 years - because we believe that sustainable design is simply good design.

Built to last

Our lighting choices are tough cookies, built to last, and suitable for even the most extreme applications (or a Hollywood set, either / or).

Local suppliers

We have a long-standing policy of using suppliers and manufacturing within a 40 miles radius, because keeping it local is keeping it sustainable.

Designed to be repaired.

Our lights are designed to disassemble easily for repair or upgrade in the future as technology continues to improve.

Sustainable packaging

Each light is lovingly wrapped in recycled paper padding shipped in recycled cardboard packaging.

Low carbon materials

Where possible, we make our parts from low carbon materials that are recycled or can be recycled at end of life.

Low energy consumption

As lighting technology evolves, so do our lights. Now, we use low energy LED bulbs to minimise energy consumption.

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Total Price


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