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Bathroom Lighting Explained

Careful attention must be made when specifying Lighting for wet areas, such as bathrooms.

There are a number of rules regarding the manufacture and installation of Lights within a bathroom. A full set of these rules can be found in the IEE wiring regulations (17th Edition).

However, we have provided a general guide here, to assist you with your selection of Fittings.


1. Which Zone?
You must first decide where exactly you intend for the lights to be fitted. This positioning will place the light in a specified Zone within the bathroom. 


2. What IP rating?
This positioning will dictate to what degree of protection the Light requires against the ingress of liquids. This level of protection is called an IP rating. 


3. View our selection.
Once you have determined the IP rating required for your fitting, please select the relevant category from the menu on the left of the screen, to view our current selection of fittings.





Zone 2
0.6m outside the bath or shower and above bath if over 2.25m.
IP44 (splashproof).
If there is no danger of a direct jetspray being accidentally applied to the fitting, IP44 (splashproof) or greater is required in this area.


Zone 1

Above the bath to a height of 2.25 metres.
IP65 (jetproof) down to IP44 (splashproof).
Where there is no showerhead or rail over the bath, IP44 (splashproof) should be safe enough, although a fitting should never be touched with wet hands. Inside a shower or bath area, where there is a shower head or demountable shower hand-set, fittings should be IP65 (jetproof) or more.


Zone 0
Within the Bath or Shower
IP68 (submersible).
Inside a bathing area of a bath, lights are sometimes used to illuminate whirlpool baths and spas. All fittings should be 12 volt and there should be a safety source such as a cut-out switch which should be fitted outside these zones.


Outside of Zones
Any lighting fitting can be installed in a bathroom if it is positioned outside of zones 0,1 and 2 but a RCD must be on the circuit.

RCD Circuit Breakers
The latest edition of the IEE Wiring Regulations stipulates that all circuits within a bathroom must be installed with a 30mA RCD circuit breaker.


Wash basins currently have no specific regulations. Good advice is to treat the 0.6m area around the basin as Zone 2.

In areas of high humidity, such as saunas and steam rooms, a luminaire should be at least IP65.

This information is intended as a guide only. See IEE Wiring Regulations (17th Edition) for full details. Orange Lighting Ltd takes no responsibility for incorrectly installed luminaries.

All fittings should be installed by a qualified electrician.


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