Downlights

[llywelyn111]

Hi

I have a job at the moment which is a timber frame 5 bedroom new build. There is 38 downlights being installed, I'm currently trying to get the customer to either get LED or energy saving compact flourescents GU10 fittings, instead of 50w. I have the energy saving compact flourescent downlights though my house and I like the light once they have warmed up. I've done a few jobs lately replacing 50watts to LEDs but I'm not as keen on the light. They just don't have enough spread on them.

Do any of you guys recommend energy saving compact flourescents GU10 downlights or just LED's now? Also what company offer the best light spread in the LED GU10 range in your opinions

 

[Lucas]

I much prefer LED's but you have to check with the local building control on how much percentage of the lights have to be energy saving,

 

[llywelyn111]

I much prefer LED's but you have to check with the local building control on how much percentage of the lights have to be energy saving,

just checked on the spec it's 50%

 

[llywelyn111]

or does anyone know which compact flourescent downlights warm up the quickest. I have JCC ones in my house that take about 30seconds to warm up

 

[Rockingit]

Generally speaking, the recommendations tend to be 40 lumens per circuit watt for the overall installation.

That is why when you look at the manufacturers catalogues then you'll see them full of "40" symbols against their products.

 

[needasparks]

But do gu10 really comply to part L as they are interchangable with non-energy efficiant lamps, i always thought not after a conversation with nic helpline a few years ago.

 

[telectrix]

if a home owner wants non energy efficient lamps then it's his house, his electric bill, so why allow some interfering bureaucrat who doesn't have a clue about the causes of global warming/greenhouses gases/ to shove his pencil pushing brown nose into the equation. if these busybodies cared to use what little brains they have, they'd realise that cows farting release more greenhouse gases than all the power stations,aircraft and cars on the planet put together.

 

[llywelyn111]

But do gu10 really comply to part L as they are interchangable with non-energy efficiant lamps, i always thought not after a conversation with nic helpline a few years ago.

the JCC compact flourescent downlights I have in my house are part L compliant as you can't actually fit a 50w GU10 into them as the lamp holder is at the top of the fire rated fitting without any flex.

 

[Richard Burns]

SMD LEDs have 120 degree spread and so the overlap tends to make up for the lower light intensity.

I seem to remember that the low energy fitting requirement was dropped a year or so back, but the 45 lumens per circuit watt and 75% low energy requirements came in!

 

[brucelee]

yes 3 in 4 but if the fitting can accept energy efficient lamps then it complies
doesnt matter if customer can change or not now
it used to be 1 in 4 and that had to be non changeable

 

[Richard Burns]

Just remembered that that 45lm is for domestic, commercial, I think, is just overall total <=55lm/W without the 75%.