rubydazzler Posted February 28, 2011 Share Posted February 28, 2011 The only wattage that isn't available anywhere is 200w. All the others can be found, if you know where to look. PT, If your fluorescents are flickering, they might need a new starter. Although I find the light very stark and hurts my eyes. Keep saying I'm going to get a gambler's eyeshade Link to comment Share on other sites More sharing options...
meshuga Posted February 28, 2011 Share Posted February 28, 2011 We have several of these http://www.amazon.co.uk/Ecozone-Biobulb-Energy-Saving-Daylight-Bayonet/dp/B000F5FNXE/ref=sr_1_1?ie=UTF8&qid=1298892798&sr=8-1 They are fantastic and I would strongly recommend them to anyone who thinks they need 100w of light. They emit a bright daylight colour 6500k, which prevents seasonal disorders ans headaches. They warm up very quickly too. Really no excuse for buying old energy wasting bulbs anymore, we no longer live in the 20th century and priorities need to be different. Ours are 4 years old and not replaced them yet. Link to comment Share on other sites More sharing options...
Plain Talker Posted February 28, 2011 Share Posted February 28, 2011 The only wattage that isn't available anywhere is 200w. All the others can be found, if you know where to look. PT, If your fluorescents are flickering, they might need a new starter. Although I find the light very stark and hurts my eyes. Keep saying I'm going to get a gambler's eyeshade I find the flickering effect on all fluorescent lighting, Ruby, brand new or long-time-installed. I find it happens, generally, at the very ends of the fluorescent tubes. It's the flicker that seems to trigger migraines and headaches, (though the light from certain types of low cloud also trigger the migraines, too. The main culprit there seems to be when the cloud is very heavy and low, but the light coming through is very bright) Link to comment Share on other sites More sharing options...
foxydebs Posted February 28, 2011 Share Posted February 28, 2011 I find the flickering effect on all fluorescent lighting, Ruby, brand new or long-time-installed. I find it happens, generally, at the very ends of the fluorescent tubes. It's the flicker that seems to trigger migraines and headaches, (though the light from certain types of low cloud also trigger the migraines, too. The main culprit there seems to be when the cloud is very heavy and low, but the light coming through is very bright) I know exactly where you are coming from on this, although since I have been taking feverfew tablets daily I have found that my migraines don't seem to be as bad (touch wood). Link to comment Share on other sites More sharing options...
Phanerothyme Posted February 28, 2011 Share Posted February 28, 2011 That statement has me confused, please elaborate? is the lumen output or colour rendering that you are pertaining to? It's a shabby, untidy spectrum with far too much UV and a big gap in the 5-600nm range. The cyan/blue component is far too strong and makes the light poor for reading. I prefer to read by daylight, or halogen/incandescent. I still don't think the case for CFLs is proven sufficiently to BAN incandescent lights. Especially from a waste perspective. Link to comment Share on other sites More sharing options...
Sarkysod Posted February 28, 2011 Share Posted February 28, 2011 It's a shabby, untidy spectrum with far too much UV and a big gap in the 5-600nm range. The cyan/blue component is far too strong and makes the light poor for reading. I prefer to read by daylight, or halogen/incandescent. I still don't think the case for CFLs is proven sufficiently to BAN incandescent lights. Especially from a waste perspective. I am still confused as you say you prefer to read by daylight( often referred to as 6000 Kelvin) or by Halogen/Incandescent (3000 Kelvin) there is a very noticeable difference there. I think with CFL's it's a case of "horse's for courses" Choose the bulb to match the wattage it's replacing in lumen's output. not equivalent wattage as stated by the manufacturer, it is so open to exaggeration ( 100 watt bulb = 1,000 lumen's roughly) Link to comment Share on other sites More sharing options...
Rupert_Baehr Posted March 1, 2011 Share Posted March 1, 2011 Could one of these low energy bulbs help? They sound interesting (If more than a little expensive) however I'd want to reserve judgement on them, as I don't know whether they aren't a little gimmick-y. Full spectrum daylight bulbs do relieve SAD, but the amount of light you get from sunlight is just slightly morethan you'd get from one of those little swirly bulbs. My lightbox (A Diamond 3) uses full-spectrum bulbs, but there are 3 36 watt bulbs in it. Quite a lot of light. - And ideally, you need to have it within about 2 metres. As for 'ionising' bulbs ... really? If they do produce significant amounts of ionised oxygen, do you really want to be breathing that? - What about 'free radicals' ? Link to comment Share on other sites More sharing options...
mart Posted March 1, 2011 Share Posted March 1, 2011 I got two of those, sarky, and the dratted things blew up after a fortnight's regular use, - they literally went "Bang" and left broken glass and the metal bayonet fitting still in the pendant holder. not keen on them at all.It's a real pain, foxydebs, the lights definitely are duller than the old bulbs, and they give me headaches. The worst part is the murcury particles in your house. http://www.dailymail.co.uk/sciencetech/article-506347/An-energy-saving-bulb-gone--evacuate-room-now.html Link to comment Share on other sites More sharing options...
Phanerothyme Posted March 1, 2011 Share Posted March 1, 2011 I am still confused as you say you prefer to read by daylight( often referred to as 6000 Kelvin) or by Halogen/Incandescent (3000 Kelvin) there is a very noticeable difference there. I think with CFL's it's a case of "horse's for courses" Choose the bulb to match the wattage it's replacing in lumen's output. not equivalent wattage as stated by the manufacturer, it is so open to exaggeration ( 100 watt bulb = 1,000 lumen's roughly) Get a CD and look at the reflected the light from a CFL and a Halogen on the shiny side (improvised spectroscope). You will see that the CFL has "hotspots" and "darkspots" on the spectrum. The Halogen will have a continuous spectrum from red to violet, as will incandescents. CFL has an "incomplete" spectrum, because it's based on producing large amounts of ultra-violet and then doping the unit with phosphors that will fluoresce under UV bombardment. So a daylight CFL, supposedly rated at 6500degK, does not emit a spectrum similar to sunlight, and is far too blue for reading. (Your eyes cannot focus blue light as easily because of its shorter wavelength). Link to comment Share on other sites More sharing options...
fake Posted March 1, 2011 Share Posted March 1, 2011 I find the flickering effect on all fluorescent lighting, Ruby, brand new or long-time-installed. I find it happens, generally, at the very ends of the fluorescent tubes. It's the flicker that seems to trigger migraines and headaches. You get flickering with the normal office type fluorescent, unless it has a higher operating frequency, but with the CFL its very rare as they use electronic ballasts which don't cause flickering. The early "jam-jar" style ones used magnetic ballasts and did flicker. As far as mercury is concerned, the electricity generated from a coal power station to light an incandescent lamp for 8,000 hours produces around 5.8mg of mercury compared to 1.8mg in total from a CFL. So, over its lifetime a CFL is better for the environment as it produces less mercury pollution than using an incandescent. Given the long life of a CFL any problem from the rare occasion they may break is grossly exaggerated. You would probably get a much higher dose of mercury poisoning from your teeth fillings. Link to comment Share on other sites More sharing options...
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