Here are a few shots of my Garmin 2720 mounted on the bike and some of the Brake! LED tail light array. This is the KLR650-specific unit that Dual Star sells but fits the KLX250S tail light assembly perfectly if you invert it.
I used a RAM U-bolt mount and medium arm for the 2720:
It looks huge there in these photos but it really is placed perfectly and rock solid
Here's the LED array. It really is plug-n-play.
Here are some daylight shots in full on sunlight of running and brake light. It's much brighter than the OEM 1157 bulb.
And some of both at night. It's almost painful to look at in the flesh. It also can be set to flash before coming on solid with the brake.