Quizzes & Puzzles2 mins ago
Low voltage lighting - going greener
2 Answers
I have some low voltage lights, running between two cables (bought from ikea). There are five 10w 12 volt lamps on the string.
What would be the impact on the transformer if I were to replace these with 1w LED equivalents? It's a long time since I did A level physics.
This would take the power consumption from 50w to 5w.
What would be the impact on the transformer if I were to replace these with 1w LED equivalents? It's a long time since I did A level physics.
This would take the power consumption from 50w to 5w.
Answers
Best Answer
No best answer has yet been selected by mallorn. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Yes in theory, but it's not quite that simple.
Firstly these LED equivalents are more efficient (produce more light per Watt than conventional/halogen bulbs) but I doubt that they are 5x more efficient (someone else will probably know).
Secondly if you de-load some TXs from their 'normal' rating, the output voltage rises a bit. So test the voltage under this load first because if it rose to say 15V, it would shorten the life of the LEDs (probably). Check the rating plate on the TX if there is one - it might specify a minimum VA load (you could put more LEDs on the string).
Firstly these LED equivalents are more efficient (produce more light per Watt than conventional/halogen bulbs) but I doubt that they are 5x more efficient (someone else will probably know).
Secondly if you de-load some TXs from their 'normal' rating, the output voltage rises a bit. So test the voltage under this load first because if it rose to say 15V, it would shorten the life of the LEDs (probably). Check the rating plate on the TX if there is one - it might specify a minimum VA load (you could put more LEDs on the string).
Related Questions
Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.