Ecohouse 2 by Sue Roaf
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Posted By: WillInAberdeenI' m regretting downlighters, they let loads of drafts through the holes in the ceiling. Next time would choose dangling light fittings.
Posted By: DamonHDWe are using this sort of thing which allows lots of ventilation for the lamps: http://www.argos.co.uk/static/Product/partNumber/4324397/Trail/searchtext%3EGU10.htm
Posted By: SprocketI'm sure I'm not the only one here that wonders if that could be a bit of a bigger problem, especially in a new build.
Sprocket wrote: They are probably something like this:-http://uk.rs-online.com/web/p/visible-led/6935167
Posted By: Sprocket>Would it be cheaper+easier just to buy a lot of baked beans and put the cans over the back of the fitting and then pile the insulation back on top?Mind you I do understand the usefulness of a good excuse to potter with steel and tools for a few hours.
Posted By: chuckeyair flow coming around the fins on the LED
Posted By: chuckeyP.S. any one up for rolling 21, 45mm diam tubes
Posted By: Sprocket> Remember 230V halogen are not as bright as 12V halogenI don't get this. Why not?Isn't it jut a matter of however many watts into a piece of hot metal?
Posted By: Sprocket> Apparently 12V are slightly more efficient at turning power into light than 230VBut if 50W goes into the bulb, where can it go? It's all heat. Heat is what makes the light too.
Please take my word for this, stay away from the 240v dichroics, these are the ones with the GU10 socket. When I wired my house I took the cheapo way and bought 50 recessed 240v units. To my utter disapointment these 240v units are no where as bright as the 12v counterparts, (verified with lux meter) and when you factor in that the 240v units consume the same amount of energy as the 12v units but with lower lux they are port value.
Posted By: fostertomDespite the comments, on reflection I think that http://www.aurora.eu.com/ProductPages/LampProductDetails.aspx?g=7822&c=&b=136&oc=84 are prob a gd deal for now - tho not state-of-art, are affordable, very shallow depth, cool running, IP54, swivleable or fixed, sparkling effect unlike CFL equivalents, and lm/W as good as any CFL. Ours are being installed today I think - will see the effect next week.
Posted By: Sprocket the Aurora LEDs that FosterTom pointed to are _much_ brighter and nicer light quality than the 5050SMD bulbs IMHO. They also are ventilated/heatsinked and run fairly cool - they have been proerly designed.
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