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

STL441 Direct / Indirect
LED Linear Lighting
White / Black

From £245.00
£204.17 exc. VAT
  • Natural White (4000k) LED
  • DALI driver as standard
Free UK delivery on orders over £120
5 year warranty


This SERA STL441 Direct/Indirect LED linear lighting is the latest in the Sera LED Linear Lighting range and shines natural white (4000K) LED light up and down. Complete with 1.5m suspension kit, and an integrated DALI LED Driver.

  • Complete with 1.5m suspension kit
  • Lengths
    • 1500mm
    • 1200mm
  • 1200mm 27W Direct / 10W Indirect
    • 2565 lm Direct / 950 lm Indirect
  • 1500mm 34W Direct / 10W Indirect
    • 3230 lm Direct / 950 lm Indirect
  • Natural White (4000K)
  • DALI Integrated LED Driver
  • Aluminium profile finished in White or Black
  • Profile 55mm Wide and 80mm High
  • Light Up and Down (Direct/Indirect)
  • Complete with 1.5m suspension kit

If you don’t need both direct and indirect lighting, then check out our standard Direct (Down Only) Continuous LED lighting or our suspended linear light range.

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

Technical Data

Part No:

  • STL441-1500-4000 (1500mm)
  • STL441-1200-4000 (1200mm)


  • 1200mm 27W Direct / 10W Indirect
    • 2565 lm Direct / 950 lm Indirect
  • 1500mm 34W Direct / 10W Indirect
    • 3230 lm Direct / 950 lm Indirect

CCT:                                4000K

Beam Angle:                 110°

IP Rating:                      IP20

CRI:                                 >80

PF:                                   >0.95

Input Voltage:              220V – 240VAC

End Section                 55mm Wide x 80mm High


  • 1200mm unit = 3.6kg
  • 1500mm unit = 4.4kg

Includes all suspension kits.




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.