Review of Sylvania 20721 Compact Fluorescent 4 Pin Double Tube 3000K, 13-watt

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I have a Panasonic bathroom exhaust fan (Model# FV-08VQL4) . The bulbs (Model# FDS18E35/4) were busted and I needed to replace them. When searching online I found that the original Panasonic replacement bulbs were selling for about $15. Then I came across this bulb and it worked out perfectly and costed only about $5!! Best of all FDS18E35/4 bulbs are cool white light but Sylvania 20683 bulbs are warm white light. It always bothered me that only one bathroom out of the three in my house had cool white light. Now all of them have the same warm white light. Overall very happy with the purchase.

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None of the local hardware stores had this particular bulb. The house is older, with lighting fixtures to match, and we searched all over for this item. Several close calls but none actually fit. Found the right one on Amazon and it works!! Got a spare just in case. Thanks for the internet and Amazon.

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I really like these bulbs! They come closer to the incandescent lighting that I'm use to, (which is 2700K) and I did try the 4100K (cool, bluish light 4100K)compact fluorescent light, and am happier with the color output that these provide for everyday illumination. I'm sure others have been a tad bit frustrated with the newer bulbs and what the Kevin rating means, so I hope this helps others to decide. Cool (4100K) bluish lighting is best for higher contrast aka reading books or print, and as a background light for your computer monitor or flat panel screen which improves the overall contrast and helps relieve eye strain.

Honest reviews on Sylvania 20721 Compact Fluorescent 4 Pin Double Tube 3000K, 13-watt

I bought this to replace a GE bulb, but didn't realize that the light was rated in Kelvins, it had more of a "yellow" light than the cool "blue" light of the GE bulb that it replaced. This bulb is rated at 2700K which gives it a 'warm' light, versus the 4100K of the GE bulb that gives a "blue or cool" light. I'm use to dealing with the Kelvin rating in video applications, but this is the 1st time I had to deal with it in a compact fluorescent lighting fixture. So buyer beware. If you like a warm yellowish light, then this bulb is for you.

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Ordered in Feb 2012 for a bathroom overhead light. It's Sept 2012 and both bulbs are now dead. Horrible reliability for a fluorescent....only 7-8 months?