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INDOOR LIGHTING

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HEATING & COOLING

ACCESSORIES

SPECIAL OFFERS

LED Flex Lights LED 12V IP20 Daylight 6000k (5m)

LEDF12IPCW

£17.95 £22.95

Outdoor LED Tape

Celing Rose

Ceiling Rose

8260

£1.50

Ceiling Rose

LED Stripe Lighting

IP67 Connection Kit

CONIP

£2.50

IP67 Connection Kit

Plug Tops & Fuses

13A 3 Pin Plug White

1383

£1.20

13A 3 Pin Plug White

Consumer Unit Accessories

6 Contactum Blanks (can be cut)

CPA02

£0.85

6 Contactum Blanks (can be cut)

RCDs

25 Amp 30mA 2 Pole Contactum RCD 2 Pole

CPR25

£16.95

25 Amp 30mA 2 Pole Contactum RCD 2 Pole

Trailing Sockets

13A 2G Trailing Socket White

2014W

£4.50

13A 2G Trailing Socket White

Shaver & Mirror Lights

Dual Shaver LED Light White

SLIGHT2

£34.95

Dual Shaver Light White

On sale!
-£3.00

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable 3W Warm White

LED3WWW

£22.00 £25.00

LED Strip Lights Ultra Thin Linear Linkable 3W Warm White

LED Drivers (24V)

IP20 24V 12W LED Driver Constant Voltage

24VDCA

£14.95

IP20 24V 12W LED Driver Constant Voltage

Wago Connectors

Wago 2-Way Connectors 4mm (x100)

221-412

£29.95

Wago 2-Way Connectors 4mm 32A Rated

Extractor Fans

100mm (4') Extractor Fan

9041347

£17.95

100mm (4') Extractor Fan

Under Cabinet Lighting

230V 4W LED Linkable Striplight - Warm White 3000K (277mm)

UCLED4WW

£11.95

Indoor LED Linkable Striplight Simple To Install Independently Switched Mountable Horizontally and Vertically

-£1.00

Connector & Junction Boxes

Wago Light Junction Box

WAGOB

£2.00 £3.00

Wago Light Junction Box

LED Drivers (12V)

IP20 12v 12w Constant Voltage LED Driver

12VDCA

£14.95

IP20 12v 12w Constant Voltage LED Driver

-£16.00

Downlighters

7W LED Downlight with White Bezel 3000K -Warm White

VFRCOBAWW

£22.95 £38.95

7 Year Warranty Low energy & high lumen output. 610 lumens Double insulated

Plug Tops & Fuses

13A 3 Pin Plug White Fitted with 5 Amp Fuse

1381

£1.20

13A 3 Pin Plug White Fitted with 5 Amp Fuse

Spot Lights

240v 50w GU10 x1 Spot Circular Base - Brushed Chrome

AL131BC

£9.95

240v 50w GU10 x1 Spot Circular Base - Brushed Chrome

Transformers (12V Halogen)

12v 20-60W Low Voltage Dimmabe Electronic Transformer

T02

£8.00

12v 20-60W Low Voltage Dimmabe Electronic Transformer

On sale!
-£3.77

Spotlights

IP20 240v GU10 35w Single Chrome Spot Lamp

SP1C

£11.22 £14.99

IP20 240v GU10 35w Single Chrome Spot Lamp

-£16.00

Consumer Units & Accessories

15 Way Metal High Integrity Cosumer Unit, 100A Switch, 2x 80A , 30mA RCD's, 10x MCB's

WNM1770

£99.00 £115.00

18th Edition Amendment 3 Metal Clad

-£5.00

Decking Lights

IP65 White Decking Light Kits x10

KIT16W

£34.95 £39.95

IP65 White Decking Light Kits x10

Walkover

IP67 Mains Stainless Steel Walkover/Driveover Light - D:120mm

WGULEN

£26.95

IP67 Mains Stainless Steel Walkover/Driveover Light - D:120mm

Garden Spike

IP65 Black Garden Spike (35W)

GU10SPIKEBK

£29.95

IP65 Black Garden Spike Adjustable Head LED GU10 Compatible 35W Max

Wall Lights

Twin Fixed Wall Light - Stainless Steel - IP65

WALL2L

£24.95

Twin Fixed Wall Light - Stainless Steel - IP65

Trailing Sockets

13A 1G Trailing Socket Black

2013B

£3.50

13A 1G Trailing Socket Black

LED Drivers (12V)

IP20 12V 40W Constant Voltage LED Driver

12DC40

£20.00

IP20 12V 40W Constant Voltage LED Driver

Shaver & Mirror Lights

LED Mirror c/w Dual Voltage Shaver Socket Chrome

RCTM2LED

£99.00

LED Mirror c/w Dual Voltage Shaver Socket Chrome

On sale!
-£3.00

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable 3W Cool White

LED3WCW

£22.00 £25.00

LED Strip Lights Ultra Thin Linear Linkable 3W Cool White

Wago Connectors

Wago 3-Way Connectors 4mm (x50)

221-413

£17.95

Wago 3-Way Connectors 4mm 32A Rated

Under Cabinet Lighting

230V 9W Ultra Slim LED Link Light - Warm White 3000K (538mm)

UCLED9WW

£14.95

Indoor Ultra Slim LED Link Light Simple To Install Independently Switched Mountable Horizontally and Vertically

Plug Tops & Fuses

13A Rubber Top Plug White

2135-21RW

£4.00

13A Rubber Top Plug White

On sale!
-£15.00

Consumer Units & Accessories

10 Way High Integrity Consumer Unit, 100A Switch, 2x 80A, 30mA RCDs, 8x MCBs

WNM1769

£90.00 £105.00

17th Edition Amendment 3 Metal Clad

Transformers (12V Halogen)

12v 35-105W Low Voltage Dimmabe Electronic Transformer

T03

£19.95

12v 35-105W Low Voltage Dimmabe Electronic Transformer

Spot Lights

IP20 230v x3 GU10 35w Chrome Spot Lamp on Triple Bar

SP3C

£39.95

IP20 230v x3 GU10 35w Chrome Spot Lamp on Triple Bar

LED Drivers (24V)

IP20 24V DC 40W LED Driver - Constant Voltage

24DC40

£26.72

IP20 24V DC 40W LED Driver - Constant Voltage

Decorative Flat Range

13A 1 Gang Switched Socket Brushed Chrome With Black Inserts

FT7BCB

£7.95

Flat Range

View

-£5.00

Decking Lights

IP65 Blue Decking Light Kits x10

KIT16B

£34.95 £39.95

IP65 Blue Decking Light Kits x10

Connector & Junction Boxes

20 Amp 4 Terminal Junction Box - White Small

8420

£2.00

20 Amp 4 Terminal Junction Box - White Small

Wall Lights

Single Adjustable Wall Light - Stainless Steel - IP65

WALL3L

£19.95

Single Adjustable Wall Light - Stainless Steel - IP65

Garden Spike

IP65 Stainless Steel Garden Spike (35W) (Heavy Gauge)

GU10SPIKE

£49.95

IP65 Stainless Steel Garden Spike Adjustable Head LED GU10 Compatible 35W Max

Garden Spike

IP65 Stainless Steel Dimmable Garden Spike (35W)

GU10SPIKEL

£29.95

IP65 Stainless Steel Dimmable Garden Spike Adjustable Head LED GU10 Compatible 35W Max

Emergency

8W LED Emergency Bulkhead

EMLED1

£34.95

IP65 Emergency Bulkhead - 3 Hour Emergency Duration (Non Maintained)

Wall Lights

Twin Fixed Wall Light - Black - IP65

WALL2LBK

£24.95

Twin Fixed Wall Light - Black - IP65

Trailing Sockets

13A 2G Trailing Socket Black

2014B

£4.50

13A 2G Trailing Socket Black

Shaver & Mirror Lights

Round LED Mirror

RCT5048

£89.00

Round LED Mirror

On sale!

Downlighters

Fire Rated GU10 Downlight Matt White

HSFRDLMW

£8.00

Fire Rated GU10 Downlight Matt White

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable Dimmable 5W Warm White

LED5WWW

£36.00

LED Strip Lights Ultra Thin Linear Linkable 5W Warm White

Consumer Units & Accessories

2 Way Metal Garage Unit x1 63A RCD

NMRS206/63

£53.00

2 Way Metal Garage Unit x1 63A RCD

Wago Connectors

Wago 5-Way Connectors 4mm (x25)

221-415

£15.99

Wago 5-Way Connectors 4mm 32A Rated

Under Cabinet Lighting

230V 13W Ultra Slim LED Link Light - Warm White (838mm)

UCLED13WW

£18.95

Indoor Ultra Slim LED Link Light Simple To Install Independently Switched Mountable Horizontally and Vertically

LED Drivers (12V)

IP20 12V 60W Constant Voltage LED Driver

12DC60

£29.95

IP20 12V 60W Constant Voltage LED Driver

Plug Tops & Fuses

13A Rubber Top Plug Black

2135-21RB

£4.00

13A Rubber Top Plug Black

Lighting Controls

Knightsbridge IP65 Remote Photocell (230V)

TRRPC

£12.95

Knightsbridge Remote Miniature Photocell - Dusk To Dawn Sensor

Wall Lights

Single Adjustable Wall Light - Black - IP65

WALL1LBK

£19.95

Single Adjustable Wall Light - Black - IP65

Wago Connectors

Wago 2-Way Inline Connectors 4mm (x60)

221-2411

£26.95

Wago 2-Way Inline Connectors 4mm (x60)

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable 5W Cool White

LED5WCW

£36.00

LED Strip Lights Ultra Thin Linear Linkable 5W Cool White

Consumer Units & Accessories

2 Way Metal Consumer Unit with x1 63A DP Switch

NM206/63

£42.00

2 Way Metal Consumer Unit with x1 63A DP Switch

Under Cabinet Lighting

230V 18W LED Linkable Striplight - Warm White 3000K (1138mm)

UCLED18WW

£22.95

Indoor LED Linkable Striplight Simple To Install Independently Switched Mountable Horizontally and Vertically

Plug Tops & Fuses

Safety Plug - Pack of 6

1606LO

£2.95

Safety Plug - Pack of 6

-£6.00

Emergency

IP65 LED Emergency Bulkhead - 3 Hour Emergency Duration (Maintained or Non Maintained)

HSEM/LED5

£18.95 £24.95

IP65 LED Emergency Bulkhead - 3 Hour Emergency Duration (Maintained or Non Maintained)

Lighting Controls

Photocell Control Sensor This sensor comes complete with a mounting bracket and 2 cable gland entries from base of unit for input and output IP66 rated Max. Load: 10A Max. Incandescent load: 1000W Max. LED load: 300W Working temperature: - 20C to 40C Working humidity: less than 93% RH Ambient Light level: 10-50 Lux (adjustable) 1 Year Warranty

Connector & Junction Boxes

20 Amp 6 Terminal Junction Box - Brown

8460B

£2.95

20 Amp 6 Terminal Junction Box - Brown

Wall Lights

Twin Up/Down Wall Light - Stainless Steel - IP65

WALL2

£54.95

Twin Stainless Steel Up/Down Wall Light Illuminates Up and Down Indoor and Outdoor Use LED GU10 Compatible 35W Max

Consumer Units & Accessories

5 Way Metal Consumer Unit with 100A DP Switch

NM506

£45.00

5 Way Metal Consumer Unit with 100A DP Switch

On sale!
-£16.50

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable Dimmable 11W Warm White

LED11WWW

£66.00 £82.50

LED Strip Lights Ultra Thin Linear Linkable 11W Warm White

Under Cabinet Lighting

Link Power Cord 1000mm

UC1000

£3.95

Link Power Cord 1000mm

LED Drivers (12V)

LED Driver 350ma 12W Constant Current

1W350A

£14.95

LED Driver 350ma 12W Constant Current

Plug Tops & Fuses

2A 3 Pin Round Plug

132A

£2.50

2A 3 Round Pin Plug

Lighting Controls

Hi Spec Slim Adjustable Occupancy Detector Surface

HSODS/DSC

£14.95

Slim Adjustable Occupancy Detector Surface Individual settings for time and lux Surface mounted Slim and sleek design

Emergency

IP20 Wall or Ceiling Mounted LED Emergency Exit Sign

EMEXIT

£32.95

IP20 Wall or Ceiling Mounted LED Emergency Exit Sign

Wago Connectors

Wago 773-102 Push Wire Connector - 2 Pole

773-102

£10.00

Box of 100

Connector & Junction Boxes

30 Amp 3 Terminal Junction Box - White

8430

£2.95

30 Amp 3 Terminal Junction Box - White

Connector & Junction Boxes

60 Amp 3 Terminal Junction Box - White

8470

£7.50

60 Amp 3 Terminal Junction Box - White

Ceiling Rose

T2 HO BC Batten Holder

8200

£2.95

T2 HO BC Batten Holder

Consumer Units & Accessories

8 Way Metal Consumer Unit with 100A DP Switch

NM806

£48.00

8 Way Metal Consumer Unit with 100A DP Switch

Wall Lights

Single Wall Light With PIR - Stainless Steel - IP44

WALL5LSS

£39.95

Single Stainless Steel Wall Light With PIR LED GU10 Compatible Internal and External Use 35W Max PIR Sensor Override Function

-£16.50

LED Strip Lighting

LED Strip Lights Ultra Thin Linear Linkable Dimmable 11W Cool White

LED11WCW

£66.00 £82.50

LED Strip Lights Ultra Thin Linear Linkable 11W Cool White

LED Drivers (12V)

IP20 12V 25W DC Dimmable LED Driver - Constant Voltage

12DC25D

£24.95

Plug Tops & Fuses

5A 3 Pin Round Plug

135A

£3.50

5A 3 Pin Round Plug

Lighting Controls

Hi Spec Chrome Recessed Adjustable Occupancy Detector

HSODR/ADJ-C

£17.95

Recessed Adjustable Occupancy Detector 360° detection Maximum 300W LED load Ambient light: 3 - 2000lx

Emergency

IP20 Wall Mounted LED Emergency Exit Sign

EMRUN

£29.95

IP20 Wall Mounted LED Emergency Exit Sign

Wago Connectors

Wago 773-104 Push Wire Connector - 4 Pole

773-104

£17.00

Box of 100

Wago Connectors

Wago 773-106 Push Wire Connector - 6 Pole

773-106

£15.00

Box of 50

Ceiling Rose

T2 Angled HO BC Batten Holder

8220

£2.95

T2 Angled HO BC Batten Holder

Consumer Units & Accessories

100A Double Pole All Metal Switch Fuse Unit

DSF100M

£79.00

On sale!
-£8.00

LED Strip Lighting

LED Strip Lights Ultra Compact Triangular Linkable 3W Warm White

LEDT3WWW

£22.00 £30.00

LED Strip Lights Ultra Compact Triangular Linkable 3W Warm White

LED Drivers (12V)

IP20 12V 50W DC Dimmable LED Driver - Constant Voltage

12DC50D

£34.95

Plug Tops & Fuses

15A 3 Pin Plug

1315A

£4.50

15A 3 Pin Plug

Lighting Controls

Hi Spec Chrome Recessed Occupancy Detector

HSODR-C

£18.95

Chrome Recessed Occupancy Detector 360° Detection Maximum 300W LED load

Smoke & Carbon Monoxide Alarm

HiSPEC HIS-HSA-BC-10 Battery Operated Carbon Monoxide Detector

HSA/BC/10

£24.95

10 year sealed battery

Ceiling Rose

T2 HO BC Batten Holder & Ceiling Rose Base

8230

£4.95

T2 HO BC Batten Holder & Ceiling Rose Base

Extractor Fans

4 Inch In-line Fan with Timer

9041086

£55.95

4 Inch In-line Fan with Timer Aventa 100T is a mixed flow fan. Quiet and powerful, high performance up to 187 m3/hr. Two speed operation with basic and timer models. Ductable up to 6m and supplied with a mounting bracket.

On sale!
-£8.00

LED Strip Lighting

LED Strip Lights Ultra Compact Triangular Linkable 3W Cool White

LEDT3WCW

£22.00 £30.00

LED Strip Lights Ultra Compact Triangular Linkable Dimmable 3W Cool White

Consumer Units & Accessories

11 Way Metal Consumer Unit with 100A DP Switch

£51.00

11 Way Metal Consumer Unit with 100A DP Switch

Plug Tops & Fuses

3A Fuse BS1362 - Card of 4

4F3

£1.00

3A Fuse BS1362 - Card of 4

Consumer Units & Accessories

6 Amp Wylex MCB - Type B Curve

£4.00

6 Amp Wylex MCB - Type B Curve

Pendant Lights

Vintage Matt White Long Drop Ceiling Pendant

8271LMW

£24.95

Knightsbridge vintage matt white suspended E27/ES pendant lamp holder (80w max) Ideal for decorative lighting over dining room tables at home as well as in bars, restaurants and in shops. Looks brilliant with our incandescent and LED antique vintage lamps. Pre-wired to reduce time on installation. 1800m drop (length can be adjusted if needed) Please...

LED Strip Lighting

LED Strip Lights Ultra Compact Triangular Linkable 5W Cool White

LEDT5WCW

£40.00

LED Strip Lights Ultra Compact Triangular Linkable 5W Cool White

Extractor Fans

iCON 15 100mm (4') Extractor Fan

ICON15

£64.95

iCON is ideal for toilets, en-suites, shower rooms and bathrooms.

Plug Tops & Fuses

5A Fuse BS1362 - Card of 4

4F5

£1.00

5A Fuse BS1362 - Card of 4

Plug Tops & Fuses

13A Fuse BS1362 - Card of 4

4F13

£1.00

13A Fuse BS1362 - Card of 4

Lighting Controls

PIR Sensor 180º Black

OS004B

£14.95

PIR Sensor 180º Black

Consumer Units & Accessories

10 Amp Wylex MCB - Type B Curve

WYNHXLB10

£4.00

10 Amp Wylex MCB - Type B Curve

On sale!
-£15.00

LED Strip Lighting

LED Strip Lights Ultra Compact Triangular Linkable 11W Warm White

LEDT11WWW

£85.00 £100.00

LED Strip Lights Ultra Compact Triangular Linkable 11W Warm White

Extractor Fans

iCON15 Fan Timer Module 240V

ICON15MODT

£19.95

Adjustable timer module 1 - 30 minutes for any iCON 240v (Suitable for iCON 15, iCON 30 and iCON 60 fans)

Consumer Units & Accessories

16 Amp Wylex MCB - Type B Curve

WYNHXLB16

£4.00

16 Amp Wylex MCB - Type B Curve

-£5.00

Weatherproof Boxes

190 x 140 x 140mm Junction Box IP56

GW44217

£13.95 £18.95

LED Strip Lighting

Electronic Dimmer with Memory Function

LEDDIMMER

£19.95

Electronic Dimmer with Memory Function

Extractor Fans

iCON15 Fan Pull Cord Module 240V

£19.95

Manual on/off control by pull cord switch. Module compatible with any iCON 240v.

On sale!

Downlighters

Fire Rated GU10 Downlight Brushed Chrome

HSFRDLSC

£8.00

Fire Rated GU10 Downlight Brushed Chrome

Downlighters

Fire Rated GU10 Downlight Polished Chrome

HSFRDLPC

£8.00

Fire Rated GU10 Downlight Polished Chrome

On sale!

LED Tape

LED Flex Lights LED 12V IP20 Warm White 3000k (5m)

LFX512WW

£24.95

Indoor LED Tape

Telephone Accessories

1 Modular Face Plate

SX7070WH

£1.25

1 Modular Face Plate

On sale!

Spotlights

240v 50w GU10 x3 Spot Circular Base - Brushed Chrome

AL133BC

£29.95

240v 50w GU10 x3 Spot Circular Base - Brushed Chrome

Consumer Units & Accessories

20 Amp Wylex MCB - Type B Curve

WYNHXB20

£4.00

20 Amp Wylex MCB - Type B Curve

LED Strip Lighting

PVC connector for additional triangular linear strip lights

LEDTCON

£2.00

PVC connector for additional triangular linear strip lights

Online only
-£68.00

Extractor Fans

Airflow Aura-eco 100T 100mm Extractor Timer Fan (Pack of 18)

9041348OP

£332.00 £400.00

BULK TRADE SAVINGS £££

LED Strip Lighting

250mm power lead to connect additional linear strip lights

LED250

£2.00

250mm power lead to connect additional linear strip lights

Downlighters

Fire Rated GU10 Tilt Downlight White

HSFRTLWH

£8.95

LED Tape

12V IP20 Daylight 6000k (5m) LED Tape

LFX512DL

£24.95

Indoor LED Tape

Consumer Units & Accessories

32 Amp Wylex MCB - Type B Curve

WYNHXLB32

£4.00

32 Amp Wylex MCB - Type B Curve

LED Strip Lighting

1000mm power lead to connect additional linear strip lights

LED1000

£2.50

1000mm power lead to connect additional linear strip lights

-£1.65

Downlighters

Fire Rated GU10 Tilt Downlight Polished Chrome

HSFRTLSC

£8.35 £10.00

Telephone Accessories

4 Modular Face Plate

SX7069PC

£2.95

4 Modular Face Plate

Consumer Units & Accessories

40 Amp Wylex MCB - Type B Curve

WYNHXLB40

£4.00

40 Amp Wylex MCB - Type B Curve

-£1.65

Downlighters

Fire Rated GU10 Tilt Downlight Satin Chrome

HSFRTLSC

£8.35 £10.00

Consumer Units & Accessories

50 Amp Wylex MCB - Type B Curve

WYNHXLB50

£4.00

50 Amp Wylex MCB - Type B Curve

LED Strip Lighting

36W 24V Switching Power Adaptor

LEDADP36

£25.00

36W 24V Switching Power Adaptor

Consumer Units & Accessories

Wylex Metal Fuse Blank - Pack of 1

EMB1W

£1.00

Wylex Metal Fuse Blank - Pack of 1

-£13.00

Consumer Units & Accessories

6 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B06

£19.95 £32.95

6 Amp 30mA Wylex RCBO Type A - B Curve

-£13.00

Consumer Units & Accessories

10 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B10

£19.95 £32.95

10 Amp 30mA Wylex RCBO Type A - B Curve

White Plastic

13A Unswitched Fused Spur

ST6300

£4.50

13A Unswitched Fused Spur

-£13.00

Consumer Units & Accessories

16 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B16

£19.95 £32.95

16 Amp 30mA Wylex RCBO Type A - B Curve

-£13.00

Consumer Units & Accessories

20 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B20

£19.95 £32.95

20 Amp 30mA Wylex RCBO Type A - B Curve

-£13.00

Consumer Units & Accessories

32 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B32

£19.95 £32.95

32 Amp 30mA Wylex RCBO Type A - B Curve

-£13.00

Consumer Units & Accessories

40 Amp 30mA Wylex RCBO Type A - B Curve

NHXS1B40

£19.95 £32.95

40 Amp 30mA Wylex RCBO Type A - B Curve

Consumer Units & Accessories

63 Amp 30mA 2 Pole RCD 2 Pole

WRDS63/2

£39.95

63 Amp 30mA 2 Pole RCD 2 Pole

Consumer Units & Accessories

80 Amp 30mA 2 Pole RCD 2 Pole

£39.95

80 Amp 30mA 2 Pole RCD 2 Pole

On sale!

Home

5W/7W LED Fixed CCT & Switchable Wattage Downlight c/w White Bezel

SPKEVFS10

£14.00

IP65 Rated Switchable Wattage ( 5W / 7W ) 5W up to 630 lumens / 7W up to 870 lumens Quad Colour (2700K / 3000K / 4000K / 6000K) Super slim design Ideal for rooms with shallow ceiling voids

-£10.00

Consumer Units & Accessories

Wylex NMT2SPD3W/1 Type 2 Surge Protection Device

£69.99 £79.99

Wylex NMT2SPD3W/1 Type 2 Surge Protection Device

White Plastic

1 Gang Architrave Switch

SW127

£2.50

1 Gang Architrave Switch

Online only

Consumer Units & Accessories

Wylex 20A 30mA SPswN B Curve 6kA Type A AFDD RCBO

NXSB20AFD

£99.00

AFDD 20 Amp Double Pole B Curve is designed to be used with the Wylex range of 18th Edition Metal Consumer Units. AFDD's detect electrical arcing faults, providing an extra layer of circuit protection for domestic and commercial user.