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Topic Title: problem with th display lamps blowing.Would dimmer help?
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Created On: 13 May 2013 07:41 PM
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 13 May 2013 07:41 PM
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hertzal123

Posts: 303
Joined: 26 August 2007

A tile warehouse uses 160w tungsten halogen linear lamps in tile display racks.The lamps are mounted horizontally,in lines of 10 and seem to have a short life.Since the voltage is about 245,I am thinking of fitting a 16A dimmer in each cct to bring it down to 220 or 230v.Has anyone done this,and is it worth a try?
Regards,Hz.
 13 May 2013 09:26 PM
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SKElectrical

Posts: 910
Joined: 01 February 2009

certainly a soft start dimmer would help prolong the life. You'll need a fair few though which will be expensive. Maybe you would be best to just use 1 x 16A dimmer for the lot - cost about £150, I sold one on ebay that I wasn't using for £35 so you might get a deal. Bare in mind that these 16A switches are large units about 200mm x 150mm x 60mm so they need to be out of sight.
 14 May 2013 08:38 AM
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broadgage

Posts: 1298
Joined: 07 August 2007

An autotransformer might be better than a dimmer since as posted above it is fiddle proof.

Better still would be a more efficient lighting system, probably using either T5 flourescent lamps or LEDs.
Halogen lamps have a low efficiency which is made substantialy worse by under running them to prolong lamp life.
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