This product was easy to install and worked well. I simply mounted it to my tag and spliced the wires into the existing wires for my taillight and turn signals on my Vulcan 900 using heat sealable splices. Previous review is correct that the lights do not show up well in bright light. Actually they are barely visible at all. Thus while the lights will help with visibility at night the benefit during the day is minimal. (Posted on 4/2/12)
I found the install easy enough, but the wires were too short. I soldered on an extension for the battery leg. My only complaint is they are too dim in daylight. My two fellow riders could not even tell they were on in bright sunlight. At night, however, they add welcome rear visibility. (Posted on 9/16/11)
I was encouraged by the quality of the hardware that came with the light (stainless bolts). I had to tap out the plate mounting holes, and luckily I had the right metric tap. You might have to tap or drill. Or both. Plus I had to notch out the bottom edge of my plate to clear the wiring. I would have preferred a cable to the loose too-short wires. My R1200R needed another foot. I added length, covered the whole thing with heat-shrink, and soldered the wires to the existing spade terminals.
The unit looks clean, and it adds a lot af attention-getting light to my rear end. (Posted on 10/31/10)