My first LED aux lights were the VisionX Solstice Solo lights as shown in the link below - the seller offers a discount (see ADV vendor page for more info). These lights were easy to mount, are highly visible (to oncoming traffic), and provide decent illumination -
http://www.visionxstore.com/Motorcycle LED Lights/XIL-S1103
Next I became interested in the less expensive LED lights from ADV Monster - I have several of the 3 LED and 4 LED flavors. These were also pretty easy to install and are pretty durable - there are some pretty good write-ups about testing of these lights on ADV under LED Aux Lights -
http://advrider.com/forums/showthread.php?t=607184
http://stores.intuitwebsites.com/hstrial-QualiRegResou/-strse-LED-Lights/Categories.bok
Similar LED lights to those sold by ADV Monster can be found at 24x7DIY. The cost seems a bit lower, but the lights come directly from China and there is less support than offered by the ADV Monster vendor -
http://24x7diy.com/index.php/cPath/23
The least expensive option that I've found are LEDs from PlasmaLEDs. The power is lower and thus these lights would not really serve for nighttime illumination. However, the LEDs are really bright and very noticeable to oncoming traffic. The 008 LEDs are water proof -
http://www.plasmaled.com/high_power_module.htm
http://www.visionxstore.com/Motorcycle LED Lights/XIL-S1103
Next I became interested in the less expensive LED lights from ADV Monster - I have several of the 3 LED and 4 LED flavors. These were also pretty easy to install and are pretty durable - there are some pretty good write-ups about testing of these lights on ADV under LED Aux Lights -
http://advrider.com/forums/showthread.php?t=607184
http://stores.intuitwebsites.com/hstrial-QualiRegResou/-strse-LED-Lights/Categories.bok
Similar LED lights to those sold by ADV Monster can be found at 24x7DIY. The cost seems a bit lower, but the lights come directly from China and there is less support than offered by the ADV Monster vendor -
http://24x7diy.com/index.php/cPath/23
The least expensive option that I've found are LEDs from PlasmaLEDs. The power is lower and thus these lights would not really serve for nighttime illumination. However, the LEDs are really bright and very noticeable to oncoming traffic. The 008 LEDs are water proof -
http://www.plasmaled.com/high_power_module.htm