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Intumescent Covers for Downlighters

Product 32

Regular Downlighter Cover

Top-selling fire-resistant covers for light fittings and downlights

£0.00 ex. Vat

    • 9.03 £
    • 16.76 £
    • £
    • £
    • 22.07 £
    • 33.18 £
    • 14.17 £
    • 39.24 £
    • 16.97 £
    • 47.1 £


Intumescent Covers for Downlighters

Our top-selling fire-rated intumescent-lined, woven glass fabric covers for lights and downlighters. Intumescent Covers for Downlighters create a fire seal to maintain integrity as well as the fire rating of a ceiling. Easily fitted from above or below in plasterboard or suspended ceilings.

According to fire statistics, overheated light fittings and electrical faults are a leading cause of fire destruction to buildings and homes.

With buildings left unprotected, fire and smoke rapidly spread and destroy rooms and properties.

Installing passive fire products for electrical services provides multiple benefits including:

  • compartmentalising fire
  • preventing fire spread
  • also preserving building structures

The intumescent material will expand to create a fire barrier, preventing fires from spreading. This allows occupants to safely evacuate a building and for fire rescue services to extinguish flames before they become severe.

Manufactured in a range of sizes to fit over various electrical fittings. An acoustic version is also available.

Tested to BS476 Parts 22, 23 and 23 (Clause 5) (1987), achieving 240minutes integrity.

Our electrical and plumbing products meet IET wiring regulations as well as Document B & E of Building Regulations tested to European and British Standards. Browse our full range of electrical and plumbing products.


– Maintains the fire rating of plasterboard or suspended ceilings rated up to 4 hours
– Available in standard and acoustic forms, preventing sound transfer from different floors of a building up to 63dB
– Can be made to accommodate downlighters alone, or downlighter/transformer combos
– Downlighter cages are a sturdier option, allowing for insulation to be laid over the top after they are fixed in place – ideal for lofts
– Can be used to improve the fire rating of ceiling-mounted speakers as well as downlighters
– The range also contains downlighter adaptors which can convert existing light fittings to fire resistant, low-energy units, saving up to 40W per light whilst providing 66 minutes of fire protection
– Easily installed in 5 minutes or less. Custom sizes made to order.

Application Instructions

Lead the cable from the transformer through the pre-cut downlight aperture in the ceiling
Pierce the cable entry point in the top of the cover with a sharp object, creating an opening large enough to suit the cable size
Feed sufficient cable through the opening for the connection
Compress the cover and pass it through the aperture in the ceiling
Open out the cover once inside the ceiling, away from the light fitting
Using the two supplied pins, fasten opposite inner flanges of the cover to the plasterboard
Insert the light fitting and fasten the closing mechanism over the inner flaps of the downlighter cover to seal the opening
Downlighter covers require a minimum of 40mm horizontal clearance and 15mm vertical clearance
Cages are rigid and require no clearance, meaning that insulation can be packed around them as long as it does not cover the ventilation holes

NB: Downlighter cages cannot be compressed to fit through the light fitting aperture from below and must therefore be positioned from above

Order References / Sizes


REGULAR                                            LENGTH/WIDTH/HEIGHT (mm)

DLC0                                                     150 x 150 x 120

DLC1                                                     130 x 130 x 070

DLC2                                                     130 x 130 x 100

DLC3                                                     130 x 130 x 140

DLC4                                                     180 x 180 x 130

DLC5                                                     180 x 180 x 170

DLC6                                                     260 x 260 x 120

DLC7                                                     260 x 260 x 230

DLC8                                                     300 x 300 x 170

DLC9                                                     350 x 350 x 230

ACOUSTIC                                           DIAM/HEIGHT (mm)

DLC 0/AC                                              150 x 120

DLC 1/AC                                              130 x 070

DLC 2/AC                                              130 x 100

DLC 3/AC                                              130 x 140

DLC 4/AC                                              180 x 130

DLC 5/AC                                              180 x 170

DLC 6/AC                                              260 x 120

DLC 7/AC                                              260 x 230

DLC 8/AC                                              300 x 170

DLC 9/AC                                              350 x 230

If an acoustic cover is required for loft areas, please add /L to the order reference eg: DLC3/AC/L

Please allow the following MINIMUM clearances for products shown above: 40mm horizontal and 15mm vertical around the fitting.



REGULAR 60 MINUTES                                                                                    ACOUSTIC 60 MINUTES


LENGTH/WIDTH/HEIGHT (mm)                       PRICE                                    LENGTH/WIDTH/HEIGHT (mm)                       


DSLVA                           300 x 100 x 120                                              DSLVA/AC            320 x 120 x 140

DSLVB                          300 x 180 x 140                                              DSLVB/AC            320 x 200 x 160

DSLVC                          300 x 220 x 140                                              DSLVC/AC            320 x 240 x 160

DSLVD                          300 x 300 x 140                                              DSLVD/AC            320 x 320 x 160

DSLVF                           450 x 290 x 150

DSLVG                          475 x 320 x 215

DSLVO                          400 x 250 x 200                                             DSLVO/AC            400 x 250 x 200

Other sizes made to order




An Envirograf® retro-fitting adaptor has been developed to convert your existing downlighter fittings into low-energy units, potentially saving up to 40W per light, whilst simultaneously providing 66 minutes of fire protection. Made to order.




DA1           Supplied with a standard white lamp holder with an earth terminal

DA2           Supplied with a brass lamp holder including earth terminal


When ordering, please specify the original light fitting’s product name and code or send a sample of the fitting.

Low-energy lamp bulbs are not supplied with the lamp holders.

Add suffix /BC (bayonet cap) or /ES (Edison screw) to the reference for the appropriate type of fitting required.