On Sun, 30 Oct 2005 02:19:38 GMT, "Marc CYBW"
wrote in
_4W8f.91989$ir4.658@edtnps90::

I seem to remember a Flying article on an LED replacement landing light
"bulb" that lasted 20x or more regular bulbs - for almost the same price.

I'll bet a LED lamp would last even longer than that.

The standard early Cherokee landing light is a #4509 (13 volts). It
is a PAR36 sealed beam lamp with a tungsten filament (C6) rated at 100
watts with an average rated "lab life" of 25 hours, and initial
maximum beam candlepower of ~110,000. About $10/each from the source
below.

There is also a Quartz equivalent lamp #Q4509 with the same
specifications except a 100 hour life and 140,000 candlepower.


Wholesale pricing:


SUNRAY LIGHTING INC.
1 Whatney
Irvine, CA 92618
(949) 452-0900
(USA) 800-8-LIGHTS
FAX "TOLL FREE" (800) 255-3141

http://sunraylighting.com/


DISCLAIMER:
The lamps mentioned, while meeting the nominal specifications
required, may NOT BE IN CONFORMANCE WITH PMA REQUIREMENTS. Consult an
FAA certified A & P mechanic before purchasing.


I have no affiliation with Sunray Lighting other than as a satisfied
customer.