From: JIMRHER@aol.com
Message-ID: <38.2307dce3.299a1937@aol.com>
Date: Tue, 12 Feb 2002 02:07:35 EST
Subject: Landing Lights
To: lancair.list@olsusa.com
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I guess I should throw in my two cents here because I recently flew my L4P 
with my own Landing light installation. I used the newest version HID from 
Sylvania called Xenarc.

http://www.sylvania.com/xenarc/x1010.htm

If your persistent at the website you will find all the technical information 
and the on-line price of $547.00 for the 2 light Kit.

This is an automotive light Kit that has two 2.5" x 6.5" rectangle lights and 
two ballast's, and one remote control (which I didn't use) intended for auto 
installation without running wires through the firewall.
I installed the two lights in my right cowl air inlet back against the 
baffle. I put one on top of the other and adjusted the top one to shine down 
and the lower one to point more straight down the runway. I made simple Al 
brackets that hold them from the side and attach to the baffle. So far they 
work exceptional. Most people I talked to said that the standard L4 landing 
lights were weak and they never saw a plane with too much landing light. The 
lights put out a rectangular pattern and with one down and the other out they 
complement each other. I thought that with them back that far in the cowl 
that there would be no light to the left side of the runway but they light it 
up fine, leaving a shadow of the prop spinner toward the left. I use them for 
recognition lights and everyone tells me they see them from very far away.

The technical part, as I understand it, is that these are the 4 Th. 
generation in HID Xenon lighting, meaning that they mount the High Frequency 
module in the base of the bulb so you don't have the HF line limitations on 
length and shielding. They still have the remote Ballast but the line can be 
longer and is smaller in dia. Also, these bulbs burn at a color temperature 
of 5400K* Vs 4200K*. This is a measure of color and is so bright that for the 
auto application they had a ceramic shield over the bulb so an on coming 
driver is not blinded. I took one off and left the other on to see the 
difference. From a projected light standpoint it made no difference but the 
vibration from the engine dislodged this cover inside the one light only 
after 10 hours, so I remove it also. The heat, as I understand it, is 
proportional to the Wattage and at 35 watts there is less heat. I tried these 
on the bench and they never got hot. The bulb has NO filament and therefor 
should take more vibration and has a longer life, they say 3000 hours. The 
lights have to fire up with 20,000 volts and after they are started they 
reduce to 85 volts and a very small amps. I never thought that they would 
work with a pulse lighting system but I tried turning them off and on very 
fast and it worked very good. I suspect that once they have started that they 
will start without going through the High Voltage start.

Thanks to the Lancair List for all the past help, I haven't contributed that 
much.

Jim Hergert
N6XE plane Sexy
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Please send your photos and drawings to marvkaye@olsusa.com.
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