[aprssig] TAPR Dayton Solar Talk

Bob Bruninga bruninga at usna.edu
Mon May 30 21:18:01 EDT 2011

Interesting.  About 1/3rd of mine are mounted upside down in ceiling fixtures, and I have not noticed any failures...


---- Original message ----
>    The only way one can get the many thousand hour life from a CFL is to
>mount them base down. When the base is up the heat from the bulb rises into
>the power supply in the base and is what kills them.  Unfortunately, few
>ceiling fixtures allow one to mount the bulb base down or have sufficient
>ventilation for the base to cool in any configuration.
>    On the other hand, I have table lamps with CFL' s with the base down
>that have lasted several years.
>    YMMV.
>Al, K9SI
>aprssig mailing list
>aprssig at tapr.org

More information about the aprssig mailing list