12v vs 240v downlights
- Thread starter PeteOP
- Start date
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12 volts apparently give a "better" slightly brighter light than mains voltage. Energy consumption is slightly higher for low voltage, due to losses in the transformer.
energy saving fluorescent lamps, in my opinion, are the best type of downlighter. They give a better beam width, and the light output from such a small lamp is phenomenal! They actually light all of the space, instead of a small pool on the floor. The colour of the light is also better for working under.
(L-R: CFL, halogen, LED)
//wiki.diynot.com/electrics:lighting:lamps:gu10
Barera, can you explain why they are C**p? The only bad thing i can think of is that they take a few minutes to warm up. Perhaps you weren't patient enough to wait for the full warmed-up light output?
If you think the light output is crap, come look at my bathroom.
energy saving fluorescent lamps, in my opinion, are the best type of downlighter. They give a better beam width, and the light output from such a small lamp is phenomenal! They actually light all of the space, instead of a small pool on the floor. The colour of the light is also better for working under.
(L-R: CFL, halogen, LED)
//wiki.diynot.com/electrics:lighting:lamps:gu10
Barera, can you explain why they are C**p? The only bad thing i can think of is that they take a few minutes to warm up. Perhaps you weren't patient enough to wait for the full warmed-up light output?
If you think the light output is crap, come look at my bathroom.
which ones last longer? (12v or 240v)
which bulbs are the cheapest to replace? (12v or 240v)
(i know cfl cost more but last loads longer, i asked the above questions to provoke an answer to help the OP, i am in the against downlighters group)
which bulbs are the cheapest to replace? (12v or 240v)
(i know cfl cost more but last loads longer, i asked the above questions to provoke an answer to help the OP, i am in the against downlighters group)
I prefer the 240v GU10 types.... had some of the transformer fed 12v types in the kitchen which were obviously very cheap as the lamp socket contacts burnt out on two of them.
Robin
Robin
Ohms law tells us the only thing that changes with a different voltage is the ampage....
I.E
50W @ 230V=0.22A
50W @ 12V =4.2A
So why doesnt a 50w lamp use 50w whatever the voltage?
All i can see is 12v is safer.
Someone enlighten me please
I.E
50W @ 230V=0.22A
50W @ 12V =4.2A
So why doesnt a 50w lamp use 50w whatever the voltage?
All i can see is 12v is safer.
Someone enlighten me please
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