Free UK Delivery On Orders Over £120*
Secure Ordering
Up To 5 Year Warranty
5* Service & Support
Limited Stock

STL278 Recessed
LED Linear Lighting

From £68.20
£56.83 exc. VAT
Free UK delivery on orders over £120
3 year warranty


The SERA STL278 Recessed Linear Lighting is an extremely slim LED fitting, being only 32mm deep and 49mm wide, enabling designers and architects to produce clean lines in their design. This recessed linear LED ceiling light fixture is easily installed from below using spring clips, meaning it’s both simple to install on a new design or a retrofit.

  • LED Light source with integrated driver
  • Easily installed with Spring Clips
  • 3 length options
    • 18W = 600mm (2ft)
    • 24W = 1200mm (4ft)
    • 36W = 1500mm (5ft)
  • Natural White (4000K) or Warm White (3000K) LED Colour Temperature
  • Aluminium Profile Finished in White (RAL 9010) Call for others.
  • Non-Dimmable (See Extras)
  • Optional Emergency Kit (See extras*)

You may also like to view our Modular STL288 Recessed LED strip ceiling light which is modular and linkable.

This fitting is NOT suitable for use in bathrooms.

We also have available a matching suspended linear light and continuous LED Linear lighting

Please note the Optional Extras for our LED light fittings are not available next day.  Please allow 4-5 days.

Looking for something slightly different? Did you know we offer different colour finishes? Call our lighting professionals today on 01727 600102 or use our LiveChat and see how we can help.

IMPORTANT:  Fittings with emergency packs take approx 1 week as they are assembled to order.

Technical Data

Part Number             Length       Lumens

STL278-600-4000       616mm          1412lm

STL278-600-3000       616mm          1197lm

STL278-1200-4000    1216mm          1727lm

STL278-1200-3000    1216mm          1568lm

STL278-1500-4000    1516mm          2793lm

STL278-1500-3000    1516mm          2439lm

Add – D For Mains Dimmable

Add – DALI for DALI Dimmable

Add – EM for Emergency Pack

  • 4000 Denotes 4000K Natural White
  • 3000 Denotes 3000K Warm White


  • 600mm            =   18W
  • 1200mm          =   24W
  • 1500mm          =   36W

Beam Angle :                   110°

IP Rating:                        IP40

IK Rating:                        N/A

CRI: .                                >80

PF:                                    >0.95

Voltage:                           220 – 240VAC

Cut-out Sizes

STL278 600mm               606mm x 37mm

STL278 1200mm            1206mm x 37mm

STL278 1500mm            1506mm x 37mm

Depth including rear entry wiring 35mm, 32mm front to back of fitting.

*Emergency kits take around 4 Working days from order to shipping.

*Dimmable Drivers and Emergency Kits are external to the fitting

Recessed LED linear Light



Free Delivery on orders over £120 applies to the UK ONLY (Exclusions apply)


  • UK Standard delivery                (3-5 Days)                   £9.00
  • UK Standard >£120                     (3-5 Days)                    FREE
  • UK Express                                   (2-3 Days)                   £18.00
  • UK Next working day*                  (1 Day)                      £24.00
  • UK Next Working day AM*          (1 Day)                      £30.00
  • Europe (See Cart/Checkout)    (3-5 Days).    From   £24.00

Excess length charge is £15 for fittings between 1.2m and 1.99m in length

Excess length charge is £34.80 for fittings of 2m or more in length

* Next working day – Orders are processed Mon-Fri only and must be place by 1pm.  Orders placed on a Friday after 1pm will not be process until Monday and therefore delivered Tuesday.



  • Fittings with emergency packs take approx 1 week as they are assembled to order.
  • We do not refund purchase postage charges on returned goods.


Export Delivery Trade Terms

All our orders outside the UK are delivered DAP (Delivered at Place) Terms unless with prior agreement.

This means that you will be responsible for and DUTY and/or VAT payments that are applicable in your country.


Delivery Time

Nearly all orders are sent via courier, and a signature is required.

UK Standard or free delivery is about 3-5 days.

UK Next Working Day is the next working day

All European deliveries take 2-4 days.

Rest of world deliveries take around 6-8 days.

If your country is not listed please contact us for shipping and order placement on +44 1727 600102.

Backorders will be delivered as quickly as possible (Usually within 28 days) we will notify you by email of an expected delivery date.

Delivery times are approximate, please do not book and trades until you have a confirmed delivery date, or have taken delivery.  We do not accept liability for any missed delivery dates, direct or consequential.   As per our terms and conditions.


We have a 30 Day return policy, however the good must be unused , in their original packaging and as new.

There is a 12% restocking charge for returned items.

Custom made or made to order are not returnable, creditable or exchangeable.

If you need to return something or the goods are faulty please contact us on +44 (0) 1727 600102 or email [email protected] before sending anything.

We recommend using a tracked service for returns, please note we only pay return postage if the goods are proved faulty.


At Sera Technologies we are proud to offer high quality products at a fair price, with many available for next day delivery.

Products have a Warranty of between 1 and 5 years, please see the product pages for detailed information.

So rest assured that if you have a problem with any of our products we will sort it for you as quick as we can.

You can contact us by email, LiveChat or on the telephone.

You will require you original order details, if you did not purchase direct please contact your supplier for assistance.