If you can't find blackened LED auxiliary lights might I suggest these?
2 of WEISIJI 20W 4 Inch Daytime Running Lights 4D Lens Spot Beam Led Work Light Bar for Cars/Jeep Wrangler/4x4-Jeep Cabin/UTE/SUV/ATV/Truck/Car/Boat/Fishing (2PCS)
Very bright, distinctive looks, very crisply defined square beam pattern with the 5D fisheye reflector/lens combination. Several options for lens from flood to spot to amber fog lighting. Gives another pound or so of aluminum heat sink weight on the forks to help keep those wild TW wheelies in check.
I bolted mine directly to forks without any additional bracketing necessary so they hug tightly against high mounted supermoto fender.