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

STL371DI Linkable
Direct / Indirect Lighting

From £297.00
£247.50 exc. VAT
  • Direct/ Indirect (Up/Down) LED Light
  • 4000K Natural White
  • Finished in white
  • DALI LED Driver
  • 1.2m, 1.5m, 2.4m Linkable Length
  • Corner Sections
  • Supplied with Suspension wires
Free UK delivery on orders over £120
3 year warranty


This is our commercial Direct / Indirect LED linear Linkable Linear pendant Lighting built with low glare glare in mind it is highly efficient and produces a clean, natural white light.

Integrated DALI dimmable LED drivers, allow for full dimming control, making it ideal for busy office environments. The STL371DI linear LED lighting system has the option of corner section to make squares or rectangles and can be up to 110m with a single feed.

  • Lengths
    • 1200mm (40W, 4200lm)
    • 1500mm (50W, 5200lm)
    • 2400mm (80W, 8200lm)
    • Corner sections ( makes L, U, Rectangle shapes only)
  • 70/30 Light Split
  • Linkable Up to 110m in length with a single feed
  • Natural White (4000k)
  • Integrated DALI Dimmable LED Driver
  • UGR <19 (Unified Glare Ratio – Low Glare)
  • Finished in White RAL 9010 / Black RAL 9005
  • Supplied complete with 1.5m suspension Kit

Looking for a high end look? Our suspended square or rectangle suspended LED light offers a stylish linear lighting solution.

Take a look at our other linear lighting options, the STL331 Linkable Linear Pendant Lighting lighting or STL137 suspended linear lighting.

Need some inspiration or want something slightly different? Call us on 01727 600102 use our LiveChat, we’re happy to answer any questions you may have.

Not sure how to connect them together, watch this video.  We have not left our any connectors from your order.

**See delivery details

*Suitable Dimming control required (Not supplied)

Technical Data

Part Number             Length         Lumens

STL371DI-1200-4000     1203mm          4200lm

STL371DI-1500-4000.    1503mm          5200lm

STL371DI-2400-4000    2403mm          8200lm


  • 1200mm          =    40W
  • 1500mm.         =    50W
  • 2400mm          =    80W

Beam Angle :                 110°

IP Rating:                        IP40

CRI: .                                >80

PF:                                    >0.95

UGR:                                <19

Dimming:                       DALI Standard

Voltage:                           220 – 240VAC

Not sure how to connect them together, watch this video.  We have not left our any connectors from your order.

1200m Dimensions


2400mm Dimensions



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.