Energy saving bulbs.

Joey the lips

http://www.boards.ie/vbulletin/showthread.php?t=2055761985


Hi Folks. I hope the mods will accept this as I thought it as important in renewable energies as in bargin alerts.

Enjoy

muffler

Yeah, thats fine.

Joey the lips

Hi Folks, The deal has just expired. however after 40 reads I am sure someone benefited.

Anyway if you keep an eye on amazon and surf all the bulbs these deals pop up quite often and as the op on the link says if you bring the deal to 25 stg 30 euro you will get free delievery.

reilig

Just to add something that I found in the course of building my house.

I have 18 ceiling spot lights throughout my house. When the electrician installed them, he put in 50 watt GU10 bulbs. That's 900 Watts when all on together.

A friend who is a maintenance person in a large office complex advised me that I could replace the 50 watt bulbs with 3 watt led bulbs which will give off the same light and use only 54 watts. LED bulbes will also last up to 10 times longer than ordinary bulbs as they do not heat up like ordinary spots.

I searched a lot of stores, hardwares and DIY places for led bulbs to no avail. I eventually ended up buying 48 bulb led bulbs from a shop in the uk through their ebay shop. They cost €60 for 20 bulbs including postage.

Just thought I'd add it as it could be a nice money saver for anyone that has a lot of ceiling spot lights.

muffler

reilig wrote: »

Just to add something that I found in the course of building my house.

I have 18 ceiling spot lights throughout my house. When the electrician installed them, he put in 50 watt GU10 bulbs. That's 900 Watts when all on together.

A friend who is a maintenance person in a large office complex advised me that I could replace the 50 watt bulbs with 3 watt led bulbs which will give off the same light and use only 54 watts. LED bulbes will also last up to 10 times longer than ordinary bulbs as they do not heat up like ordinary spots.

I searched a lot of stores, hardwares and DIY places for led bulbs to no avail. I eventually ended up buying 48 bulb led bulbs from a shop in the uk through their ebay shop. They cost €60 for 20 bulbs including postage.

Just thought I'd add it as it could be a nice money saver for anyone that has a lot of ceiling spot lights.

I dont think the LED bulbs will give the same illumination though. But still a great idea and a great saving.

Khanis

A 3w LED can produce roughly the same light as a 30w halogen. I've seen a few better ones recently though. There are some new 3x2w ones that come close to a 50w halogen and one 5w one I've seen that's claiming 500Lumen.. which is pretty impressive.
PM me for details.

windyboy

Hi,

I am currently building a 2 storey house, my architect who is a relation has advised me to go with low voltage halogens throughout as he has yet to see an equivalent LED.

When I count the number of spots, it would be great to put in low energy LED's but he says they are not as warm, they are not dimmable? He also makes the point you don't have all your lights on at the same time.

I am nearing the 1st fix stage and I would like to get prices from a few electricians, but I am unsure what to specify.

What is the general concensus out there, should we spec recessed Halogens and wait for LED technology to improve?

Is retrofitting easy, or are the holder fittings completely different?

Cheers,
Windyboy

Joey the lips

windyboy wrote: »

Hi,

I am currently building a 2 storey house, my architect who is a relation has advised me to go with low voltage halogens throughout as he has yet to see an equivalent LED.

When I count the number of spots, it would be great to put in low energy LED's but he says they are not as warm, they are not dimmable? He also makes the point you don't have all your lights on at the same time.

I am nearing the 1st fix stage and I would like to get prices from a few electricians, but I am unsure what to specify.

What is the general concensus out there, should we spec recessed Halogens and wait for LED technology to improve?

Is retrofitting easy, or are the holder fittings completely different?

Cheers,
Windyboy

I would copy and paste this into the electrical section if i were you. There you get an electrician and joe publics experience.

MicktheMan

windyboy wrote: »

Hi,

I am currently building a 2 storey house, my architect who is a relation has advised me to go with low voltage halogens throughout as he has yet to see an equivalent LED.

When I count the number of spots, it would be great to put in low energy LED's but he says they are not as warm, they are not dimmable? He also makes the point you don't have all your lights on at the same time.

I am nearing the 1st fix stage and I would like to get prices from a few electricians, but I am unsure what to specify.

What is the general concensus out there, should we spec recessed Halogens and wait for LED technology to improve?

Is retrofitting easy, or are the holder fittings completely different?

Cheers,
Windyboy

Windyboy,
from my experience as a heat loss investigator/surveyor, recessed lights are a nightmare from an air tightness point of view. If you are thinking about led's to save money, then you will save an awful lot more on you heating bills if you don't install recessed lights at all. If you must have spots then why not a rail system or other surface mounted spot systems. These can then be easily upgraded in the future as newer technology comes of age. Remember a recessed spot means a hole in your ceiling which isn't easily repaired.
Mick

Joey the lips

MicktheMan wrote: »

Windyboy,
from my experience as a heat loss investigator/surveyor, recessed lights are a nightmare from an air tightness point of view. If you are thinking about led's to save money, then you will save an awful lot more on you heating bills if you don't install recessed lights at all. If you must have spots then why not a rail system or other surface mounted spot systems. These can then be easily upgraded in the future as newer technology comes of age. Remember a recessed spot means a hole in your ceiling which isn't easily repaired.
Mick

Facenating. Thank you. Have you any more information on this.

MicktheMan

Joey the lips wrote: »

Facenating. Thank you. Have you any more information on this.

Put simply, a recessed light is, in general, a hole in the airtightness of the building fabric. Whether this ceiling is an upper or intermediate ceiling matters not. Where recessed lights are present they are in general the biggest source of air leakage in the building. To make matters worse, warm air rises to the ceiling and the recessed light makes a perfect chimney for the expensively heated air to escape. Hope this helps. Mick

Joey the lips

MicktheMan wrote: »

Put simply, a recessed light is, in general, a hole in the airtightness of the building fabric. Whether this ceiling is an upper or intermediate ceiling matters not. Where recessed lights are present they are in general the biggest source of air leakage in the building. To make matters worse, warm air rises to the ceiling and the recessed light makes a perfect chimney for the expensively heated air to escape. Hope this helps. Mick

Brilliant. Should make all the BER assers happy. Surly the heat just escapes upstairs though.. But I see your point. What is the point in heating a room to loose it.

Makes you reasise to avoid recessed lighting on an attic conversion

reilig

windyboy wrote: »

Hi,

I am currently building a 2 storey house, my architect who is a relation has advised me to go with low voltage halogens throughout as he has yet to see an equivalent LED.

When I count the number of spots, it would be great to put in low energy LED's but he says they are not as warm, they are not dimmable? He also makes the point you don't have all your lights on at the same time.

I am nearing the 1st fix stage and I would like to get prices from a few electricians, but I am unsure what to specify.

What is the general concensus out there, should we spec recessed Halogens and wait for LED technology to improve?

Is retrofitting easy, or are the holder fittings completely different?

Cheers,
Windyboy

I have my whole house fitted with LED GU10 spots at this stage. All bulbs are 64 and 78 led - depending on how much light I want in each place. Honestly, they give off about 95% the light of Halogens, yet they are only 3 or 4 watt. I can live with that. I have some lovely led's that give off a white light over my stairs which look really well. In my opinion, the biggest advantage of them is that they don't heat up - so I can insulate directly over them. many houses that I go into have some of their halogen spot bulbs removed because they are too strong and sharp on the eyes.

You get used to the LED bulbs after a short period of time.

BrenCooney

Hi Reilig,

Quick question, What colour temperature are your spots and where did you source them?