I fly an electric Ultralight. I have tested 4 different sets of LED strobes or beacons, but none of them seem to be able to produce the kind of punch you get from a real discharge strobes. This one, from PSA Enterprises, produced the brightest light of all (helped by a large number of LEDs), but it hardly got my attention from 50 feet away, and it does not force you to look away. I have now come to the conclusion that - at least for now - LED strobes are not powerful enough to be noticed from several 1000 ft (landing lights are another matter - much more focused). I have Xenon strobes on order and will return these.

I am building a RANS S-19 and bought this with the intention of mounting it on the top of the vertical stabilizer. The picture includes a mounting container and a cover lens. All I received was the bulb. Im sure AC Spruce will make me whole on this but submitting review for info purposes.