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Re: [RFI] CFL Bulbs that are OK!

To: rfi@contesting.com
Subject: Re: [RFI] CFL Bulbs that are OK!
From: Andy <ingraham.ma.ultranet@rcn.com>
Date: Fri, 3 Dec 2010 18:58:19 -0500
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
> CFLs are supposed to be kept vertical
> ****** Who said that and where????????????

The packaging says so, at least on some brands.  Vertical, base down.

ODDLY ENOUGH ... On the bulbs I purchased most recently (Osram
Sylvania 7 watt), it says only this:

"Light output has more than 5% decrease when lamp is used in base down

So it would appear this bulb may actually work better upside-down than
upright!  And it is fine mounted horizontally (90 degrees from

I am guessing the vast majority of CFLs are used base-up (in office
buildings), so maybe the manufacturers finally wised up.

Years ago at a radio station, we used to buy long-life incandescent
traffic signal bulbs, which were marked for base-down use only.  They
didn't last very long mounted upside down.  So for those it made quite
a difference.

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