24-FULL SPECTRUM T-20 Tubular 5000K Fluorescent Bulbs Start Price USD 215.00 Current Price USD 215.00 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Monday, September 22, 2008 End Time Wednesday, October 22, 2008 Location York, Pennsylvania See more about '24-FULL SPECTRUM T-20 Tubular 5000K Fluorescent Bulbs ' Description You are bidding for a lot of 24 Guaranteed NEW Halco ProLume 14 Watt (replaces a 60W Incandescent)  120Volt "Natural White"  "Long Life" Full Spectrum T-20 5000K 81 C.R.I. 800 Lumens Decorative Tubular Fluorescent Light Bulbs! Medium Base Average Life = 8,000 Hours M.O.L.(maximum overall length) = 5 7/16" Diameter = 2 1/2" Nickel-plated Brass Base resists corrosion!!!!! These bulbs will be shipped to you directly from Halco, for orders within the U.S. The ProLume T-20 Decorative Tubular bulb uses 75% less energy compared to 60 watt incandescent lamps. *Instant soft start *Excellent color rendering *Reliable starting to -10 degrees F *Replaces a 60 watt incandescent bulb The true color of light is defined as its "color temperature", or how the light looks in terms of white. It is measured in degrees Kelvin. The higher the color temperature, the cooler or more blue  the effect of the light. Natural sunlight is the point of comparison. The Northern Sky produces a cool blue light which would replicate 8,000 degrees kelvin.  An Overcast Sky produces a bluish light which would replicate 6,500-7,000 degrees kelvin. Sunlight At Noon!!  is the whitest light with a kelvin temperature of 5,500 degrees. Candle Light has a soft yellow light. This is the warmest light of 2,000 degrees kelvin.   The further you get away from 5,500K in either direction, the further you get away from "full spectrum" lighting. Incandescent = 2700K Halogen = 3000K Warm White Fluorescent = 2700K Cool White Fluorescent = 4100K "Halco" Natural White = 5000K    The Truth About It To make an incandescent bulb full spectrum, the light that it produces passes through a filter of neodymium glass(in the cheaper bulbs, just a coating), which enhances the light and brings it as close to natural sunlight as an incandescent bulb can get. If the bulb doesn't have the familiar bluish/purplish neodymium glass shell, it is NOT a full spectrum incandescent bulb. Period. The fluorescent produces light based on the phosphurs inside the bulb and needs no filter. Fluorescent full spectrum is always better than incandescent and should be your first choice. If you have to, or prefer to use incandescent, then the full spectrum bulbs like my Halco's are the best you can buy. Fluorescents are much more energy efficient, and they last twice as long as my "long life" incandescents. A lot of people advertise full spectrum fluorescent bulbs as being a treatment for depression (S.A.D.--seasonal affective disorder). A fluorescent can't even think about being helpful to S.A.D. unless it has a color temperature of 5500K - 5600K(not 5000K, not 6500K), and a C.R.I. of at least 90. CRI means Color Rendering Index. It is a measurement of light equivalency, 0 being darkness and 100 being direct sunlight. When it meets those criteria, it then becomes the most optimal full spectrum bulb available. So, while my Halco full spectrum Natural White 5000K fluorescent makes a great reading lamp and an outstanding source of beautiful natural white lighting, it is not at all helpful nor should it be used as, a treatment for those people who suffer from Seasonal Affective Disorder. Having said that, is it then fair to say that a person suffering from S.A.D. would derive a greater(or any) benefit, or feel at all better as a result of constant exposure to these bulbs, compared to being exposed to a standard cool or warm white fluorescent, or any type of incandescent or halogen? Probably, but don't buy these bulbs as a treatment or cure for S.A.D.  These incredibly fantastic Halco fluorescents are much closer to the color spectrum configuration of natural sunlight, than a regular standard cool white fluorescent. As a result, glare is minimized, colors are brighter and truer, and eye strain is greatly reduced. To sum it up, a fluorescent full spectrum bulb is better than an incandescent full spectrum bulb. When it comes to full spectrum fluorescents, you should always know and strongly consider the C.R.I. and Kelvin ratings of the bulb! A color temperature of 5500K-5600K and a C.R.I of 90 or higher, is as close to natural sunlight as you can possibly get. If you want to treat depression, listen to your doctor. Not a light bulb salesman!   *Please see my store for larger or smaller quantities, as well as many other bulbs and wattages. Please don't hesitate to inquire about any other speciality, H.I.D., halogen, or fluorescent lamps.   The following warranty is in writing on each box: The Halco Warranty "If this product does not perform to the specifications supplied on this package, write to the following address for bulb replacement". Halco Lighting Technologies 2940 Pacific Drive Norcross, GA. 30071 www.halcolighting.com   A Word(or two) About Shipping  I ship everything via U.P.S or U.S.P.S. Priority Mail, with delivery confirmation. International orders are shipped either by U.S.P.S. Express Mail International or Priority Mail International. Every order is packaged and shipped very carefully in brand new corrugated boxes, along with new and top quality bubble wrap and/or peanuts. As a result, breakage has virtually been eliminated. I also pride myself on getting your order to you very quickly. I usually make 2-3 shipping runs per day in order to accomplish this, and I also ship on Saturday(U.S.P.S.). I DO NOT CHARGE ANY HANDLING CHARGES! *There are no handling charges or any other added charge imposed on your order. The only shipping charges you pay are the actual published shipping rates of the U.S.P.S. or U.P.S.*   I ALWAYS COMBINE ALL SHIPPING CHARGES on multiple item orders!   COURTESY REQUEST Although very rare, if you should have a breakage, or any other problem, with any of my products or service, please don't hesitate to contact me. I believe most problems can be resolved through a considerate and respectful dialogue, and open and timely communications.   International Orders ****I ONLY Accept Pay Pal as Payment on International orders ****Please Provide Your Phone # on International Orders ****No Returns or Exchanges on International Orders    Thanks for stopping by to look, and have a GREAT Ebay Day!   Be sure to add me to your favorites list! Check out my other items! Add my eBay Store to your Favorites and Sign up for my email newsletters My Store     Place a Bid!