I checked out this product on several websits . . . please don't
spend a lot of bux purchasing these things for adaptation to
airplanes.
The bulbs used in their fixtures are plain vanilla halogen
spot/flood devices not unlike the one you'll see at
http://www.aeroelectric.com/exh.jpg
These bulbs have built in reflectors and come in a wide
variety of wattages and beam spreads. The 12V rated lamps
are used by the thousands in product displays in stores
and are quite inexpensive. One might also consider using
a common automotive headlamp like the one I show at
http://www.aeroelectric.com/4352.jpg
This lamp is 55w, very compact, the right shape for leading
edge incorporation and a whold lot less expensive than the
Nightsun products.
The respondant's concerns about "regulation of the vehicle"
shows lack of knowledge of how things are supposed to work.
It's true that a bulb's life varies strongly with voltage.
For example, running a bulb a 95% of its rated value doubles
the life, 105% of rated value halves the life. HOWEVER,
given that these bulbs are designed for thousands of hours
service in high duty cycle service like storefronts should
mitigate the builder's concerns for service life . . . especially
since the 4509 lamp used in tens of thousands of certified
ships has a service life on the order of 10-20 hours!
Check out the light bulbs I've suggested above and do some
poking around on your own in the lighting sections of hardware
stores and automotive suppliers . . .
> FYI
> With regard to the recent post about the Nitesun biking lighting......I
>asked them if these type of lights could be used with an alternator as a
>power source. Their response is below.
>
>--------- Forwarded message ----------
From: "Nightsun" <night-sun@mail.wman.com>
>Date: Sun, 10 Oct 1999 09:24:09 +0000
>Subject: Re: Use on a car?
>
>Might work ok, but what wories me is the voltage regulation of the
>vehicle. Some alternators / voltage regulators but out upto 16 vdc,
>way too much for our bulbs. Upto about 14 will work, but the lamp
>life will be shortened, over 14 and the lamp life would be very
>short. Most airplanes are 28 volt.
> In any event we do not sell headlights without batteries.
>
>
>Regards,
>
>
>Nightsun
>
>Date: Sat, 9 Oct 1999 21:52:11 -0400
>Subject: Use on a car?
From: Dana Hill <dhill36@juno.com>
>
>Hi Night-Sun,
> I would like to know if your lighting system could be hardwired into
> a
>14 Volt DC charging system, such as a car/airplane? Would this sort
>of mod be difficult? Any info in this regard would be appreciated.
>
>Thanks,
>Dana Hill
>
>Customer Service, Monday to Friday, 9 a.m. to 5 p.m., Pacific time
>626-799-5074
>
Bob . . .
////
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