Recessed lights for ensuite and dimmer switches

[garrymum]

Hi guys

Currently getting my ensuite re-done and would like to add some recessed lighting, such as

http://www.screwfix.com/prods/39413...wnlights/Shower-Light-IP65-MR16-Satin-Nickel#

The light switch is located outside the ensuite in the bedroom and is currently a conventional 1 gang rocker switch. We would like to replace this with a dimmer switch - can a dimmer switch be used on such lights? I have been looking on the screwfix website and all their bathroom lights seem to be low voltage. Are all recessed lights now low voltage with a separate transformer?

Thanks in advance.

 

[Taylortwocities]

The lights you have quoted use 12V lamps and a transformer to change the voltage from 230v to 12v. The dimmer goes on the 230v side so a dimmer can be used on these lights.
You can also get similar lamps that use mains voltage lamps (eg GU10) so a transformer is not required.

Please note:
1. You may need to derate the dimmer when its being used with some types of lamps
2. Most electrical work in a bathroom (including adding downlights) is notifiable. See WIKI for details.

 

[garrymum]

Thanks. Which are the best type, low voltage or 230v?
Any significant pro's or cons of either type?

 

[nozspark]

However..................

If your en-suite has an extractor fan which comes on at the same time as the lights then you will not be able to use a dimmer!!

12v lamps give a crisper white light and the lamps last a bit longer

230v lamps give a more 'orangy' glow

Contrary to some people's belief 12v ones cost about the same to run as 230v ones

 

[garrymum]

However..................

If your en-suite has an extractor fan which comes on at the same time as the lights then you will not be able to use a dimmer!!

Extractor fan has a pull cord to start it so would be ok on that one.

 

[garrymum]

2. Most electrical work in a bathroom (including adding downlights) is notifiable. See WIKI for details.

Even if you get the pre-wired kits?