Discuss Cost of low voltage lighting.. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
Remember to factor in the cost of replacing the transformers too as they will last from anywhere between 3 months to a few years depending on various factors,(make,installation design,usage)Hello - I am,as you will notice new here. I hope that I can get some definitive answers that are clearer than I get on-line and talking to 'those who talk the talk but know little'!
I have given up on trying to correlate teenage girls and their complete lack of understanding why light switches are stuck on walls, so I am looking at ways to counteract this - ie running cost!
Low voltage lighting. I have 23 low voltage lights each with a 50W bulb driven by a a small 220/12V transformer. The transformer has two bits of info: PRI - 230-240Vac 50/60Hz 0.28A, and, SEC: 11.7Vac 20-60W SELV equivalent.
Now, questions please
1. What is the actual draw of current of this array - is it 64.4W (230 x 0.28A) per light, or is it 50W per light?
2. I am looking at replacing these with LED GU10 bulbs. On the box these are marked 3.6W = 35W. Am I right in interpreting this as a 3.6W draw and the equivalent of a 35W incandescent light? - ie if all my lights are on, as they usually are, the total current draw is 82.8W (23 x 3.6) and therefore I can get 12 hours on a Kwh of electricity?
Explanations in plain English are appreciated! Thanks!
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