appologies, I was talking tosh in the previous post. The down lights I have are rated IP55 not IP64. The question is the same , are these OK for bathroom zone 1.
This is the info from the Homebase site
Suitable for use in bathrooms zones 1, 2 and 3.
Diameter 9.5cm, Requires a 30mA RCD for zone 1.
Includes 1 x GU10 bulb max 50W.