Just a quick update and a few user notes on this: Thanks everyone for their input on the OP's topic. It took a while for shipping, but I finally recv'd (3) Arc V's from Firehouse Technology. Nice discount for the 3-pack; and got one each red, white and green lights. The placements were pretty obvious, given the size of the lights and the available flat, empty spaces on the UA. I put the white on top and the green on the front bottom at about 45-degrees, with the red on the back. The green can be seen better at a distance, but the strobes all work well out to about 400 ft. After that, if you lose sight of the UA, the lights won't help to pick it out much, but if you keep the bird in sight, you can still see the flashes past 600 ft. More importantly (to me) the UA really stands out at a typical 25-100ft away and doesn't get lost in tree or other dark clutter, even when sideways to the viewer. The strobes are insanely bright at arm's length, so I close my eyes when energizing them. The front/bottom light is too thick for where it is placed and the UA rests on the bottom of the light instead of the front legs. Doesn't affect takeoff performance, or landing, but if that's a concern, leg extensions would take care of it. The top light did not affect satellite reception as far as I could tell. Started the first flight with 9 sats and quickly picked up a total of 17 as soon as I was above vertical obstructions. Starts up with all available sats when launching from an open field. The front/bottom light was not visible on video unless the UA was close enough to a surface to reflect the strobe back into the camera. The gimbal cover on my Mavic Pro could not be removed once the light was stuck to the Velcro. Checklist now reflects that ("...remove gimbal cover before strobe placement"). Weight of the lights is negligible and I couldn't perceive any performance decrement in Program mode. Haven't flown the lights in Sport mode yet. Will probably mount the lights for every real estate shoot I do, but can easily imagine turning off the front strobes to avoid window reflections. Very happy, so far. See photos for strobe placements. Cheers.
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