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Why does my bathroom light keep failing — is it moisture?

Zone 1 runs from the bath or shower tray up to 2.25 m (or the fixed shower head if higher); zone 2 is the next 60 cm. Both need IPX4 minimum, IPX5 where water jets are used for cleaning. Outside the zones the wiring regulations set no IP figure, but we'd still pick IP44 where splashes reach. 132 of our lights meet IPX4.

bathroom · IPX4

Zone 1 runs from the bath or shower tray up to 2.25 m (or the fixed shower head if higher); zone 2 is the next 60 cm. Both need IPX4 minimum, IPX5 where water jets are used for cleaning. Outside the zones the wiring regulations set no IP figure, but we'd still pick IP44 where splashes reach. 132 of our lights meet IPX4.

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The numbers for this situation

  • IP needed in zones 1 and 2IPX4
  • Where water jets are used for cleaningIPX5
  • Our lights at IPX4 or better132
  • Price from£26

Worked out, not measured

Where these numbers come from

  • Verbatim question from the buyer bank (-1_people-deadends §3); answer computed. Checked against 389 matching lights in our catalogue snapshot of 2026-09-27; 132 can be bought now. Same sums on every page, release families-2026-09-29.

All the numbers

MeasureValue
IP needed in zones 1 and 2IPX4
Where water jets are used for cleaningIPX5
Our lights at IPX4 or better132
Price from£26

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Why does my bathroom light keep failing — is it moisture?

Zone 1 runs from the bath or shower tray up to 2.25 m (or the fixed shower head if higher); zone 2 is the next 60 cm. Both need IPX4 minimum, IPX5 where water jets are used for cleaning. Outside the zones the wiring regulations set no IP figure, but we'd still pick IP44 where splashes reach. 132 of our lights meet IPX4.