"George Patterson" wrote in message
news:gKdvf.26704$Uf7.17185@trnddc01...

Whelen makes a small power supply for a single strobe that pulls 1.7 amps
at 14 volts. They also make a flasher that will drive two wingtip strobes
that pulls 4 amps.

Here's one that shouldn't draw much in the way of current.
http://www.greatplainsas.com/scelectrical.html

My first Emeraude had one on the top of the tail and it worked pretty well.
I had to replace the transistors once when the leads broke from vibration. I
installed two of these in the wingtips of my new Emeraude, but heat would
affect them badly, slowing the rate of flashing until it stopped. I had
"potted" the transistor leads with clear silicone to prevent breaking, which
may have contributed to the heat build-up.

They have been replaced with a Whelan unit from
http://www.strobesnmore.com/.

Rich S.