What does 'acoustic rated' mean when it refers to a light?

aliasojo

Description: IP65 rated Fire & acoustic rated low voltage recessed single downlight for use with 12v 35w MR16 lamps & transformers (not included). Chrome finish recessed downlight with a sealed clear glass. Ip65 rated, suitable for use in bathroom zones 1, 2 & 3. They are acoustically rated and comply with BS467-20 and 23 as required by the building Regulations


Been looking for bathroom light ideas and came across this description. I understand what the fire related bit means but not the acoustic?

Also...is there any reason why I shouldn't consider downlights for the bathroom?

I know someone who has them and hates them because he says cold draughts come down around them. Is that the norm or have his just been poorly fitted?

BargainGalore

[FONT=Arial, Helvetica, sans-serif]Q Is it true that fire protection covers can also help with the acoustic performance of a ceiling?
A Yes, but only some types. When recessed lighting is installed, it compromises the acoustic rating of a ceiling in just the same way as it does the fire rating. Sound bleeds through the gaps. UK Building Regulations Approved Document E now requires that adequate steps are taken to prevent this transmission of sound from one part of a dwelling to another. Good quality Fire Protection Covers can solve the problem.

http://thelightingsite.com/discussion.htm
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brig001

If you fit downlighters to a bathroom, I would make sure they are properly sealed. If not, steam can get into the loft and condense making everything wet. If they are fire rated, the fittings should be fine, it's just a matter of sealing to the ceiling.

HTH,
Bri.