v8kid
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| posted on 2/11/10 at 05:24 PM |
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150W bulb substitute required
The house lights are costing a fortune to run!
Presently living room has 5 off 150w table lamps and 10 30w halogen spots.
The trouble is it's a converted barn so its high and loads of dark wood as well as being a bit too big. I've tried 100W bulbs and it is
miserable looking, compact fluorescent (12W)just don't give out anywhere like enough light and anyhow take aged to come to full brightness.
I tried these fluorescent spots instead of the halogens and it was just laughable how pathetic the light output was
What else is there out there I could try? How come car lights seem so much more effective?
Cheers
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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jossey
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| posted on 2/11/10 at 05:27 PM |
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led bulbs with non directional led's
they are very bright.
they may work.
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tegwin
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| posted on 2/11/10 at 05:31 PM |
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I am currently refitting a house... A lot of the lights are being switched over to LED...
You can get some 4000K (white) 3W LED downlight bulbs from hongkong for about £3 each...
They are 12v however.. so the fittings need to be re-wired via an LED driver... these are available also on ebay from about £8....
I have gone one step further in the bathroom and cloakroom and fitted light/movement sensing switches... so the lights only come on when its dark
enough and when there is somoene in the room...
I can light my entire bathroom very well on about 18W 
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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big-vee-twin
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| posted on 2/11/10 at 05:36 PM |
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Car lights use Halogen gas which allows the filament to get hotter and glow whiter.
You get get the same for your home Tungsten Halogen or sometimes called Diochroic.
The other types which give a lot of output are Metal Halide lamps
a 35watt metal halide will be quite bright or even a 70watt
Warm White is 3500kelvin
White light is 4000 kelvin but this is not a measure of how bright they are.
The output is measured in Lumens lighting level in Lux.
You get many more lumens out of Metal Halide, but they aren't low energy. You will have seen plenty in retail shops.
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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BigLee
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| posted on 2/11/10 at 05:54 PM |
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Your 30w spots are the easy one. I have these in my hall and work great.
http://www.your-lightbulbs.co.uk/acatalog/led235.html
High initial cost but cheap to run. Just don't get the B&Q ones. They are the cheap chinese ones that don't last long.
As for your 150w lamps, metal halide is probably the way forward, but the light has a blue hue.
Or wait another couple of years whilst the technology improves! 
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graememk
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| posted on 2/11/10 at 06:09 PM |
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daniel mason
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| posted on 2/11/10 at 08:26 PM |
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can you not swap the 30w halogen down lights for 50w and not use the 150w table lamps?
i do not like the 3watt led lamps and our firm dont use them. thee are a range of ultra bright led lamps which are above 3w.
they are expensive but are far better than the 3w lamps
[Edited on 2/11/10 by daniel mason]
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iank
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| posted on 2/11/10 at 08:29 PM |
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Still very expensive, but are good and bright, instant turn on and last a very long time.
http://www.householdinnovations.co.uk/shop/ledon-10w-60w-equiv-ultra-efficient-led-light-bulb-p-1156.html
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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ernie
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| posted on 2/11/10 at 09:11 PM |
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you could try 70w metal halide
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thunderace
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| posted on 3/11/10 at 12:44 AM |
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this is the way to go
http://cgi.ebay.co.uk/36w-UMBRELLA-6500K-DAYLIGHT-ENERGY-SAVER-BULB-BC-ES-/180574812250?pt=UK_Light_Bulbs&hash=item2a0b18f85a
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ChrisW
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| posted on 3/11/10 at 11:12 AM |
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The problem with all this stuff is that it's too expensive.
Quick beermat calculation shows you'd need 5000 hours to make back the £15 cost of that bulb, assuming power costs 10p per unit. At 8 hours a
day, that's nearly 2 years payback!
Chris
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v8kid
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| posted on 3/11/10 at 01:47 PM |
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Ta for the suggestions Chaps. Metal Halide seems the way to go but there are a lot of safety warnings surrounding them has anyone bottomed them
out?
Leccy is costing me around 12p a unit I will have to check out the cost savings v capital costs but would go with it anyhow if I could get better
lighting performance. In context the room is 50' x 16' x 16' with dark slate floor and wood panelled ceiling so I need a shed load
of lumens!
Tried the compact fluorescents and the colour rendering and light intensity is way below my expectations. Brilliant for outside lighting though I have
6 fittings round the house and they cost buttons to run and give good light
Also tried LED but although bright to look at don't give much light to the room.
Really like the idea of the sensor in the bathroom I'm up for that!
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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smart51
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| posted on 3/11/10 at 02:21 PM |
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You need about 20W of CFL or LED to replace 100W of tungsten fillament bulb. I've never seen an energy saving bulb of 30W size so the only way
to replace your 150W fillaments it to wire in more fittings.
I bought some phillips LED ceiling lamps with 3x 7.5W LEDs in each. They're as bright as a 100W bulb, come on instantly and the quality of
light is good but they have a spotlight type pattern so you'll need one for every 4m2 of floor space and they're not cheap (but are
guaranteed for 20 years!)
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rusty nuts
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| posted on 3/11/10 at 09:30 PM |
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Night vision goggles?
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MikeRJ
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| posted on 4/11/10 at 12:34 AM |
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quote:
Originally posted by v8kid
Tried the compact fluorescents and the colour rendering and light intensity is way below my expectations.
You simply need more powerful ones then. Most of the "100 Watt" equivalent lamps sold by supermarkets are nothing of the sort. We have
some big CF lamps to light the atrium where I work, don't know what rating they are but they are very bright indeed.
RS sell silly size CFs like this 320 Watt lamp
with an alleged equivalent of 2000 Watts of incandescent lighting. Not exactly cheap though!
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David Jenkins
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| posted on 4/11/10 at 12:12 PM |
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quote:
Originally posted by rusty nuts
Night vision goggles?
Lots of carrots...
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Liam
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| posted on 4/11/10 at 01:03 PM |
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10 little spotlights in a room that size is hugely inadequate, so no wonder you need all those table lamps to back them up. For comparison I have 5x
50W halogen spots in my little 2.5x2x2.4m bathroom. To replace halogen GU10s with LED you need high power 4/5W ones at least. I used these...
http://www.ultraleds.co.uk/u1042ww-gu10-wide-angle-warm-white-p-2248.html
Which are relatively cheap for the brightness, a nice warm colour, and the 120 degree beam angle helps with uniform illumination rather than pools of
light on the floor. They are dimmer than 50W halogens, but would replace your 30W ones no problem. So 250 ==> 20W for me. The same site does a 5W
version of that bulb for £1 more which would be better for you. But with only 10 little fittings in such a huge room you'll still need the table
lamps.
Replacing the 10 spots for something bigger and more appropriate, such as these...
http://www.qwikfast.co.uk/catalogue/high-frequency-electronic-downlight-p-5016.html
...is probably a good option. Bigger but will put out a shed load more light and being flourescent they are efficient. Thread in another forum I use
regularly about those lights here...
http://www.diynot.com/forums/viewtopic.php?p=1644795#1644795
Hope that helps
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