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Thread: A new type of 12V down light
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16th September 2004, 02:00 AM #1
A new type of 12V down light
In the latest Jaycar flyer i found a replacement for halogen downlights, these things have 20 light emitting diodes in them and are compareable to a 15 Watt halogen, the advantage is they only draw around 2 watts so you could run a **** tin of them of them off one transformer. They are on special for $10 at the moment over the internet.
MR-16 lamp
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16th September 2004, 09:46 PM #2
Personally I would like to see them in the flesh to check out the quality of the light. As for running multiple lights of one tranny. Why would you bother as you get light and tranny as a set cheap enough and you run the risk of catching some poor bugger out in the future when they replace a bulb/s and overload the circuit. :eek:
Plausible deniability is the key to success
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16th September 2004, 09:57 PM #3
I use one of those Mercury Vapour lights, I think they range from 250-400 watts. I have noticed that down here in SA a lot of those lights people used in hydroponics are being sold very cheap, around $20. I am not sure if they are the same design but it might be worth a try. Could even grow hair on people's head that are hair deficient!!
Regards tony
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16th September 2004, 10:11 PM #4Originally Posted by MarkV
CheersSquizzy
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" {screamed by maths teacher in Year 8}
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17th September 2004, 08:47 AM #5Senior Member
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i will have to check these out. i have 10 HPM uplights set into my concrete driveway. these would look pretty smart instead of the standard halogen bulbs. I hope they come in blue.
G
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17th September 2004, 09:57 AM #6Senior Member
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They are efficient - consume 12 watts not 2W and long life. Eqv standard MR16 need to be around 50W for same light output.
Added advantage is that all LEDs will not fail together so you get a warning. do not expect a uniform light beam, it is more like a 25deg spot but high visibility.
Regards,
Theva
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17th September 2004, 10:21 AM #7
Squizzy,
I would think twice before putting down lights in the bedroom and instead put in a simple oyster light (personal preference of course). Downlights only light a certain area where oyster lights give a softer ambient light throughout the room. Unless you have a downlight directly overhead, they will cast a shadow when you are reading a book in bed. Plus a dimmer switch is cheaper ($12) for a normal light compared to a dimmer fo a low voltage down light ($50-60). So unless you want to put something under the spotlight in your bedroom, I would stick to an oyster light.
SlavoIf I do not clearly express what I mean, it is either for the reason that having no conversational powers, I cannot express what I mean, or that having no meaning, I do not mean what I fail to express. Which, to the best of my belief, is not the case.
Mr. Grewgious, The Mystery of Edwin Drood - Charles Dickens
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17th September 2004, 10:46 AM #8
Slavo,
For what it's worth, we have had 12v downlights as reading lights over the bed for over 15 years.
First time we used a focus-able fitting which was relatively expensive, but in our current house have a simple $25.00 eyeball with a dimmer.
Positioned about 600 off the wall and more-or-less in line with the edge of the bed, light can be directed to suit your personal "reading style".
Keep them about half dimmed if not actually reading and they have quite a soft light.
Of course you need other lights for general illumination, in our current situation three 12v wall washers.
How do the LED's go for dimming?
Cheers,
P
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17th September 2004, 12:27 PM #9
Thanks Slavo and Pete.
So how much should I pay for a standard downlight. I'm sure, on the ones I put in my computer desk ($40.00 ea), that the packaging said "dimmable" on the 240 volt side so a standard dimmer would work.
Most LED's respond directly to voltage so should be dimmable. Noticed you can get LED trailer/truck lights from Hella now.
I might go with the oyster light. I have seen them but what do they use for the illuming bit. Is it Halogen? or can you use a tungsten replacement longlife flouro??. Have no idea whats in them.
CheersSquizzy
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" {screamed by maths teacher in Year 8}
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17th September 2004, 01:55 PM #10
Squizzy,
My mate is a sparky and gets his down lights with transformer for $21 each. When I get home I will see what brand they are. He put some in an RSL about 3 years ago, which are on just about 24/7 and they haven't blown a globe yet. Plus the surround is powdercoated and not painted, so they stay a nice white colour and don't yellow like the cheaper painted ones.
We bought a couple of oyster lights that take 2 normal bulbs but I have seen them with those circular flourosIf I do not clearly express what I mean, it is either for the reason that having no conversational powers, I cannot express what I mean, or that having no meaning, I do not mean what I fail to express. Which, to the best of my belief, is not the case.
Mr. Grewgious, The Mystery of Edwin Drood - Charles Dickens
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25th September 2004, 12:06 AM #11
Sorry Squizz haven't been watching this thread. Pierlite make good ones for about $20 with a dimmer about $15 bucks Low voltage are the go as the bulbs are cheap. About $5 and available at Woolies. Try jaycar.com.au and type in downlight and it will give you some idea of prices and options and for GCP10 they have coloured ones I personally have always used regular dimmers as the low voltage dimmers are too exxy and not really needed. All the Leccy's I have talked too do the same. Been running for years now and no probs at all.
Plausible deniability is the key to success
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25th September 2004, 11:19 AM #12
it's estimated that LED lighting will take over from all other in the not-too-distant-future..... far more efficient apparently and longer lasting
- I paid $13 per kit last time I bought (24) ELV DownlightsSteve
Kilmore (Melbourne-ish)
Australia
....catchy phrase here
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27th September 2004, 09:36 AM #13
The downlights my sparky mate uses are called aussie gimbals and he gets them from his wholesaler. It is preferential that the surround is powder coated rather than painted, because it wont change colour over time.
Aparently LEDs are getting really popular in places like Japan and it will only be a matter of time before Australia gets into the act.If I do not clearly express what I mean, it is either for the reason that having no conversational powers, I cannot express what I mean, or that having no meaning, I do not mean what I fail to express. Which, to the best of my belief, is not the case.
Mr. Grewgious, The Mystery of Edwin Drood - Charles Dickens
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27th September 2004, 07:42 PM #14
Most of the level crossings and traffic lights on the North side of Brisbane are using LEDs. You can even buy LEDs with a bayonet fitting on the end to replace the brake lights in your car.
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27th September 2004, 10:33 PM #15Senior Member
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the speed limit signs in melbourne are LED Based now.
G
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