ARGHHHHHH thats it....celebrity it is....cant do this
Click flameguard downlighter
- Thread starter bolst3r
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As already stated 12v is extra low voltage 230v is low voltage.
For a quartz tungsten halogen luminaire the 12v version does give out more light per watt than the 230v and also 12v version has longer life.
However the cold cathode or florescent luminaire at the moment will not work on 12v only the LED luminaire has 12 and 230v versions.
The tungsten lamps are being phased out over a few years and off hand I can't remember what goes in what year. First we lost the 150w tungsten bulb then the 100w and so on.
At some point we will lose the spot lamp so even if you don't intend to use energy saving lamps now it would be a good idea to have a fitting which can use them in the future.
To use discharge lamps (cold cathode or florescent) on 12v needs electronics to boost the voltage and the GU5.3 lamps are two small to get the electronics inside the bulb however when running on 230v it needs less electronics and it will fit inside the bulb.
As "flameport" pointed out the type he directed you to will take the slightly longer length of the cold cathode lamp.
The other consideration is spread of light. And the GU5.3 bulb comes in many angles and if for example you want to light pictures on the wall you can get just the angle of light required. The cold cathode lamp give more of a spread so each lamp looks a little dimmer but you need less fittings to get same spread of light. So for high ceilings the GU5.3 are better but for low ceilings the cold cathode is better.
Lighting is an art form and to correctly light an art gallery people get paid a lot of money. Even a factory requires a lot of skill to light well. I saw a factory with a low 8' ceiling where someone used low bay lights and it was rotten but same lights at 12' did a grand job.
Saw one house with 10 GU5.3 lamps in low ceiling about 7' and it looked like a planetarium. Of course even the colour of the walls and ceiling make a difference.
But if you are using GU5.3 do look at angle of light. It varies from 10 to 60 degrees also the dichroic lamps with the GU10 and GZ10 are not interchangeable so you can't fit wrong lamp but that is not the case with GU5.3 and also there is a lot of ultraviolet light from these units and one has to be careful how close you are to them.
If you are lighting pictures then colour temperature becomes important and the GU5.3 is higher than the GU10. However you should not dim any quartz halogen lamp as it uses the very high temperature of the envelope to reflect back the tungsten onto the element. So when many are used splitting 1/3 and 2/3 is common so you have three levels of lighting. This needs a wide angle of course.
They can be dimmed of course but it really shortens their life.
For a quartz tungsten halogen luminaire the 12v version does give out more light per watt than the 230v and also 12v version has longer life.
However the cold cathode or florescent luminaire at the moment will not work on 12v only the LED luminaire has 12 and 230v versions.
The tungsten lamps are being phased out over a few years and off hand I can't remember what goes in what year. First we lost the 150w tungsten bulb then the 100w and so on.
At some point we will lose the spot lamp so even if you don't intend to use energy saving lamps now it would be a good idea to have a fitting which can use them in the future.
To use discharge lamps (cold cathode or florescent) on 12v needs electronics to boost the voltage and the GU5.3 lamps are two small to get the electronics inside the bulb however when running on 230v it needs less electronics and it will fit inside the bulb.
As "flameport" pointed out the type he directed you to will take the slightly longer length of the cold cathode lamp.
The other consideration is spread of light. And the GU5.3 bulb comes in many angles and if for example you want to light pictures on the wall you can get just the angle of light required. The cold cathode lamp give more of a spread so each lamp looks a little dimmer but you need less fittings to get same spread of light. So for high ceilings the GU5.3 are better but for low ceilings the cold cathode is better.
Lighting is an art form and to correctly light an art gallery people get paid a lot of money. Even a factory requires a lot of skill to light well. I saw a factory with a low 8' ceiling where someone used low bay lights and it was rotten but same lights at 12' did a grand job.
Saw one house with 10 GU5.3 lamps in low ceiling about 7' and it looked like a planetarium. Of course even the colour of the walls and ceiling make a difference.
But if you are using GU5.3 do look at angle of light. It varies from 10 to 60 degrees also the dichroic lamps with the GU10 and GZ10 are not interchangeable so you can't fit wrong lamp but that is not the case with GU5.3 and also there is a lot of ultraviolet light from these units and one has to be careful how close you are to them.
If you are lighting pictures then colour temperature becomes important and the GU5.3 is higher than the GU10. However you should not dim any quartz halogen lamp as it uses the very high temperature of the envelope to reflect back the tungsten onto the element. So when many are used splitting 1/3 and 2/3 is common so you have three levels of lighting. This needs a wide angle of course.
They can be dimmed of course but it really shortens their life.
Why would you do that when a 50watt lamp is the largest available for that lamp holder?
It is rather an old fashioned way of doing it.
I think I will take that as a complement! Now pipe, slippers and for sale several drums of 2 core braided flex....................
Also, your electrician should know that insulation resistance testing should be carried out prior to connecting the transformers.
Make sure from the manufacturers of the transformers that they will not be damaged by a 500 volt test.
They may appear to survive it but be weaken and fail after a short time. T
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