Energy Efficent Lighting | Page 2 | on ElectriciansForums

Discuss Energy Efficent Lighting in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

when i drive past a government/council office building at 2.00am and it is NOT burning megawatts of lighting in an empty building, then i'll consider fitting ugly energy saving lighting. until then .... practice what you preach.
 
and how would you compare them to the normal halogen..


is 12v with transformer an option in energy terms

That makes no difference to the energy consuption of the lamp at all.

Be careful with the building regs if your working in Northern Ireland, they aren't the same as in England and Wales. Part F is what you need to comply with (Part L in it is about Heating Appliances etc).

As far as I am aware we still need to have the dedicated low energy fittings for 1 in 4 lights - it certainly was the case end of November when I last had any dealings with Building Control.
 
Apology:

Sorry I=P/U I had forgotten you were in NI, different rules!! Also different rules apply in EWS for non dwelling locations where the average efficacy should be 55lm/W. but may be again different in NI.
Also I have just calculated the lm/W of the GU10 CFL and they are actually about 22lm/W.
Most fluorescent lamps are over 45lm/W and I had assumed these were the same, I do apologise for giving inaccurate information.

This extract from the TLC (horror) technical site and this extract from the illuma catalogue gives some useful rough lamp data:
View attachment Illuma_Catalogue_extract.pdfView attachment TLC lamp types.doc
 

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