Under the revised night flight rules effective March 2021, this strobe is non-compliant as an anti-collision light. It's very bright, I don't think 3 mile visibility would be an issue, but there's no way to make it flash white only, or flash red only, or even red and white without flashing green. It will either cycle through all colors, blink all at once, or be solid white. It would be very easy to fix this, but unfortunately it's not possible. The power button is a bit strange, the device looks nice. , but that just doesn't fit the rules I need.