"chipsoars" wrote in message
oups.com...
What LED fixtures did you use and where did you get them?

I'm also thinking about a high mounted brake light. Anyone done that?

Chip F.



Chip,

I got them from

http://www.partssystems.com/shop/pro...y_id=LED%20STT

I used the 4" round, 56 LED fixtures (you also have to order the pigtail or
plug and a rubber gasket flange mount) for the tail/turn/brake lights. An
over unit was used for the 3rd brake light on the upper fin.

Note that since the back surface of the Cobra fin (at least on my aluminum
top) is angled forward slightly, it is necessary to make a wedge so the fin
light fixture is perpendicular to the ground. This is because LED light
fixtures typically have a narrower beam angle than incandescent fixtures.

I used a small relay for the "logic" circuit (the NO contact of the relay is
supplied by one turn signal and the power to the relay coil comes from the
other - - thus if both tail lights are on at the same time, the fin brake
light comes on). They sell a module for this, but it is really just a couple
of isolation diodes. Problem with using diodes is you lose about .7 volts
across the diode. Like Eric Greenwell, I also added two side LED turn/brake
lights right above where Cobra puts the side marker lights, but on the
clamshell part, an amber one mid-span and a red one near the rear.

BTW, the difference in light intensity and especially the "attention
getting" rise time of the LED brake lights is remarkable. My light upgrade
project was spawned by this overwhelming fear that some unwed welfare mother
with no insurance would torpedo my trailer from behind (g).

all the best,

bumper