When water is near electricity, we generally admit it’s potentially dangerous. Zones are split up to define areas with precise measurements to keep people safe. Each zone has its own rules on what can and cannot be installed. It is important to understand the rating by which bathroom lights are classified, check IP rating details.
Zone 0 anywhere inside the bath or shower. Any lights used in this zone must be low voltage, (max 12v) and be completely immersion proof. Lights designed for showers must be carefully fitted according to the instructions.
Zone 1 requires a minimum of IP45, but it is generally accepted that IP65 fitting is to be used.
Zone 2 IP44 rated fittings are required when located inside the area.
Outside Zones are anywhere outside zones 0,1 and 2. There are no special IP requirements in this zone. However, we suggest using a light with an IP rating of at least IP20.